Animals Archives - Seattle Aquarium

Students at Muckleshoot Tribal School name new octopus

Posted on October 7, 2024November 4, 2024 by Emma Leiser

One of the Seattle Aquarium’s newest residents weighs 20.5 pounds, sports eight arms and hails from the chilly waters of Neah Bay. She’s already helping visitors understand the importance of her species—the giant Pacific octopus—to local ecosystems.

The young octopus also has a special name—sqiqələč (skee-sku-luch)—that reflects the Aquarium’s place on traditional and contemporary Coast Salish land. sqiqələč means “baby octopus” in the Lushootseed language. The name was chosen by middle- and high-school students in a language and performing arts class at Muckleshoot Tribal School.

The Salish Sea is rich not only in biodiversity, but also in linguistic diversity. The language of the land and headwaters where the Aquarium resides is Lushootseed. As noted on the Muckleshoot Tribe’s website, “The Lushootseed language was nearly lost through the forced assimilation of the boarding school era beginning in the early 1890s. Today, Muckleshoot, as well as many other Coast Salish Tribes, are working to restore and preserve Lushootseed by developing robust language and culture programs that teach our youth and keep our Native language alive.”

In early 2024, Aquarium team members Malik Johnson and Kaitlin Brawley—who help care for giant Pacific octopuses—contacted the students’ teacher Teresa Allen about naming the octopus. The naming process reflects the Aquarium’s aim to further integrate more languages, stories, names, faces and knowledge of the Indigenous peoples we partner with throughout the region. Recent work has also included new signage in Lushootseed, the integration of Indigenous languages into Aquarium camp and youth curricula, presentations that highlight our relationship with Makah waters and other projects that amplify Indigenous languages and traditional ecological knowledge at the Aquarium.

Arrangements are being made for the Muckleshoot Tribal students to visit sqiqələč this fall. Like other giant Pacific octopuses, sqiqələč will live at the Aquarium temporarily. Aquarium divers carefully collect a certain number of octopuses with a special permit from the Washington State Department of Fish and Wildlife. They typically stay with us for around a year, and when they show signs that they’re mature and ready to mate, our divers return them to their original collection location so they can complete their life cycles and reproduce.

In August, the Aquarium and the Muckleshoot Tribe announced a new partnership to enrich cultural and marine science education work.

Don’t miss “puffin plumage palooza” at the Seattle Aquarium!

Posted on July 23, 2024July 25, 2024 by Emma Leiser

Ahhh, summer in the beautiful Pacific Northwest. Sunshine, blue skies, warming temperatures and…breeding plumage? If you’re a tufted puffin, the answer is yes. These charismatic alcids (or diving birds) are all dressed up for the season—and now is the perfect time to see them!

Birds of a feather sticking together

Tufted puffins are sometimes called “the parrots of the sea” because of their dramatic and colorful change in appearance during their breeding season. Beginning at about age 3, both males and females develop a bright orange bill plate (complemented by vibrant orange legs!), a white “face mask” and—our favorite part—distinctive golden tufts above their eyes, also the source of their common name.

These striking features have an important purpose: helping the tufted puffins find a suitable mate. Once together, they often become a bonded pair and form lifetime partnerships. Females typically produce a single egg, which both parents take turns incubating until the chick hatches about six weeks later.

Amazing all year ‘round

Tufted puffins get more muted—but only in appearance!—with the close of the summer breeding season. Their tufts and bill plates fall off, the white mask is replaced with black feathers and their legs return to their typical grayish/brownish color. They’re still absolutely fascinating to watch as they, like all alcids, appear to “fly” underwater while diving for their next meal of small schooling prey such as herring, krill and shrimp.

If hunting solely for themselves, they’ll gulp the food down while still under the surface. But if they’ve been successful during the breeding season and have a chick to feed, they can carry between five and 20 fish back to the nest, held crosswise in their bills!

"Puffin plumage palooza" is waiting for you!

Here at the Seattle Aquarium, we have five tufted puffins in our care. If you’d like to see them in all their colorful glory, now is the time—they typically begin to lose their breeding plumage just as we’re saying goodbye to summer in Seattle, late August or early September.

Plan a visit today to meet the tufted puffins, learn more about them and explore our habitats to find other new favorite marine animals!

Health care for feathered friends at the Aquarium: A birds-eye view

Posted on May 8, 2024May 9, 2024 by Emma Leiser

This story is part of our series, The Doctor Is In—highlighting our veterinary team’s expertise in service of animal wellbeing.

It’s not just marine mammals at the Aquarium who are trained to cooperatively participate in their own health care. The birds entrusted to us participate in their own care too. How do they do it? By eating!

“Animal care staff can closely monitor food consumption to help assess health,” says Supervisor of Birds and Mammals Sara Perry. “We count how many and what type of fish or bug each bird eats during the day. Overall behavior during a feeding can tell us a lot about the wellness of the bird as well.”

Working toward the clean plate club

When feeding alcids (including the common murres, rhinoceros auklet and tufted puffins in our care), staff can also deliver specific vitamins or necessary medications, expertly hidden in a tasty fish. It’s similar to how parents of young children may “hide” vegetables in a favorite food!

The comparison to human children doesn’t stop there: Animal care staff often need to be creative and patient when feeding birds. “They’re not like a sea otter who will usually eat anything at any time, or a seal who just gulps fish down. Ask any of our staff, feeding the birds takes finesse!” Sara laughs. “We rely on our knowledge of each bird, their behavior and their preferences—depending on time of year—and apply it to a group setting.”

"You look like you haven't aged a bit!"

Here at the Seattle Aquarium, we have a good number of elderly birds in our care. But it’s hard to know that just by looking at them. Why? Birds don’t show graying of feathers as they age, unlike the graying or lightening of hair and fur of mammals (including us humans!)—so it’s not possible to estimate age based on that indicator.

Birds do show other age-related changes that are seen in mammals, though. For instance, their mobility and vision may deteriorate over time, their appetites may change, and they may rest more than younger birds. “Our Aquarium staff know each bird as an individual, which allows us to adjust feeding and spaces to help the older ones,” comments Director of Animal Health Dr. Caitlin Hadfield. “It’s all in the name of taking the best possible care of each bird at the Aquarium for their whole lives.”

Did you know?

All the birds (and mammals) at the Seattle Aquarium fall into one of two categories—they were either born at a zoo or aquarium or they were rescued and have been deemed non-releasable according to the guidelines established by government agencies such as the U.S. Fish and Wildlife Service and policies such as the Migratory Bird Act.

Providing the very best care and quality of life for the animals entrusted to us—at all stages of their lives—is a vital part of our mission, Inspiring Conservation of Our Marine Environment. Learn more about birds at the Aquarium on our website or, better yet, plan a visit with us soon!

What is biodiversity and why is it important to us?

Posted on April 22, 2024December 12, 2024 by Emma Leiser

If you took a time machine back to four billion years ago, life would look very different. Because all life forms would look nearly the same! All life on Earth shares a common ancestor, but billions of years of genetic mutations took us from microscopic organisms to millions of unique species, adapted to live all around the world. This wide variety of life is known as biodiversity.

Biodiversity has three components: genes, species and ecosystems. All living things have genes, which guide how the organism will look and behave. Genes mutate, and these changes can impact how well organisms survive in their environment. Over time, genetic changes build up, eventually leading to distinct species. Many different species and nonliving environmental factors—including water, minerals, currents, wind and temperature—interact to function as an ecosystem, where they fulfill different roles. The global ecosystem of all Earth’s living beings is called the biosphere.

For example, an organism’s genes determine whether it grows a shell to become a mussel, sprouts many tentacles like a sea anemone or grows wings like a black oystercatcher. In a rocky shore ecosystem, these species all coexist. Each fills a different role, like how mussels filter water, anemones provide other organisms shelter and black oystercatchers maintain balance in the populations of their prey species.

Biodiversity's importance

A diverse ecosystem with many different species is more likely to survive natural and human-made catastrophes like floods, storms, wildfires and marine heat waves. The members of that ecosystem offer a wide range of possible strengths and defenses. Each adaptation represents a potential way to help the ecosystem bounce back from challenges.

Species within an ecosystem are connected, which means a threat to any one species could have surprisingly widespread effects.

Sea otters represent a classic example of the dangers of disregarding biodiversity. During the 18th and 19th centuries, hunters and fur traders nearly drove sea otters to extinction. The decline in sea otters led to an explosion of sea urchins, their prey, since there were no longer enough sea otters to fill the role of predator. The urchins overgrazed kelp beds, which are vital habitats for many marine species, including rockfish and salmon. Sea otter populations are on the rebound thanks to conservation efforts, but recovery of these ecosystems is a lengthy process.

Think of an ecosystem like a car. A car is made up of many different parts, some of them small or unseen. If your car were to lose one bolt, would you still want to drive it? What about two bolts or a headlight or even a whole tire? How many parts would you be willing to lose before you no longer feel safe?

Marine species face many human-caused threats, including overfishing, climate change, habitat loss and pollution. Losses of marine biodiversity have brought huge changes to ecosystems. And since Earth’s ecosystems connect to create the biosphere, losses of biodiversity could mean planet-wide changes, affecting us all.

Billions of people—including you!—rely on the ocean for food, medicine and other resources. Changes in marine ecosystems, like the continuous problem of overfishing, could threaten these resources. In addition, your job might be connected to the sea. Your favorite vacation spot or even your home might be located near a body of water that is vulnerable to coastal erosion, dangerous storms or species losses.

Threats to biodiversity could mean the loss of culturally important species or activities, especially for Indigenous communities. Some endangered marine species—including sea otters and southern resident orcas—are considered culturally significant by people native to the Pacific Northwest. Indigenous peoples have stewarded coastal areas since time immemorial and continue to lead efforts to protect marine biodiversity. Their traditional knowledge is vital to conservation work.

Our biodiversity initiatives

The Seattle Aquarium is involved in many conservation projects that aim to protect and restore biodiversity in the Salish Sea and beyond. Among our longest-running projects are seasonal and annual surveys of Washington’s sea otter population. The more information we have on sea otters, the better we can understand what conditions they need to thrive.

We are also involved in recovery projects for Indo-Pacific leopard sharks, kelp and xʷč’iłqs, which is the Lushootseed word for pinto abalone. The Seattle Aquarium values the expertise of Indigenous people and has partnered with tribes, Indigenous leaders, and local communities in Washington State and in the Coral Triangle on research and conservation efforts for these species.

Celebrating biodiversity at the Ocean Pavilion

Our new Ocean Pavilion expansion will bring the jaw-dropping biodiversity of the Coral Triangle to Seattle. Coral reefs are hubs of biodiversity. They support about a quarter of known marine life, despite taking up less than 1% of the seafloor. Known as the “Amazon of the ocean,” the Coral Triangle is a reef system in the Indo-Pacific that is considered the most biologically diverse marine ecoregion in the world. It contains 75% of known coral species, including at least 15 endemic species that are found nowhere else on the planet.

The Ocean Pavilion is designed to celebrate the biodiversity of Earth’s one ocean. The design process included cross-cultural collaboration between local Coast Salish and urban Indigenous leaders and the Aquarium’s design and architectural team.

When the building opens this summer, you’ll have the chance to come face to face with over 100 different tropical marine species. Through the Ocean Pavilion’s publicly accessible oculus window, you’ll see the beauty of a healthy reef ecosystem just by walking by. And native plantings on the rooftop and public artwork will highlight the relationships between Coast Salish communities and shoreline ecosystems.

By surrounding yourself in the ocean’s bounty of life—whether on a visit to the Aquarium or a trip to the shore—you can appreciate your part in the global web of biodiversity. And the role you can play in protecting it.

Urchins, anemones and sea stars, oh my! Invertebrate care at the Seattle Aquarium

Posted on April 3, 2024April 11, 2024 by Emma Leiser

This story is part of our series, The Doctor Is In—highlighting our veterinary team’s expertise in service of animal wellbeing.

Invertebrates—animals without backbones—are found in every habitat at the Seattle Aquarium. And, like all animals entrusted to us, they need expert care to thrive. “Our goal is to provide great quality of life in an enriching environment for the animal’s whole life,” says Director of Animal Health Dr. Caitlin Hadfield, MA VetMB MRCVS DiplAZCM DipECZM, “And that goes for all the animals under our care.”

“All the invertebrates get checked by Aquarium staff at least once every day,” she comments, “Their environmental conditions are checked as well—that includes evaluating the water and the systems that support it.” Although some invertebrates may seem like fairly simple animals on the surface, managing their care, says Dr. Hadfield, presents some interesting challenges. One of them stems from tracking the number of animals of each species because some, like corals, can be colonial. “It gets tricky,” says Dr. Hadfield. “Do we track this as one animal—a coral head certainly looks like one structure—or as the thousands of polyps that make up that structure?”

Even invertebrates need primary care providers

Regardless of how they’re counted, invertebrates, like all the animals at the Aquarium, are part of our preventative medicine program. Aquarium biologists are on the front lines of animal care, making careful observations of each animal at least once a day. “Our staff are experts at evaluating the animals they’re caring for and are able to identify subtle changes in their appearance or behavior,” says Dr. Hadfield. Because all animal care staff have the training and experience to make these evaluations, each animal at the Aquarium has the equivalent of a PCP, or primary care provider, who has the best understanding of their health history and needs.

Routine exams, in many cases, are also part of the Aquarium’s preventative medicine program (yes, even for invertebrates!). “A big part of that is reviewing the animal’s history,” says Dr. Hadfield. “For that, we rely on the knowledge of our animal care specialists and the information in our record systems.” Along with that review, an invertebrate checkup might involve a physical exam, fluid collection or ultrasound, depending on the animal’s needs. Sea urchins need their teeth checked, too!*

*Surprise—sea urchins have teeth! They’re arranged in circle at the bottom of the urchin’s body.

All for one, one for all

When doing health checks, it’s important to consider all the animals in a habitat. “If an animal isn’t eating well,” notes Dr. Hadfield, “It could be normal for that time of year or life stage, but it could also be because there’s something wrong with that animal, the other animals around it, or the world it’s living in.” In those cases, animals that show symptoms first can become “canaries in the coalmine” for issues that might affect neighboring animals. Closely monitoring individual animals can keep smaller problems from spreading and becoming bigger.

Providing the very best care and quality of life for all the animals entrusted to us is a vital part of our mission, Inspiring Conservation of Our Marine Environment. Learn more about invertebrates at the Aquarium on our website or, better yet, plan a visit with us soon!

Expert animal care at every age

Posted on March 26, 2024April 11, 2024 by Emma Leiser

This story is part of our series, The Doctor Is In—highlighting our veterinary team’s expertise in service of animal wellbeing.

Our highest priority is providing the best possible lives for the animals in our care—nearly 18,000 fish, invertebrates, birds and mammals with the opening of the Ocean Pavilion. At the forefront of this work are our veterinary, water quality and animal care teams, whose members monitor the health of the animals every day.

Director of Animal Health Dr. Caitlin Hadfield, MA VetMB MRCVS DiplAZCM DiplECZM, is the veterinarian in charge: performing routine observations, interpreting records with animal care staff, providing treatments for animals when needed, and undertaking physical examinations routinely and when concerns arise.

Not surprisingly, some of those issues of concern are related to aging. Geriatric* medicine has become a focus for animal care specialists at zoos and aquariums accredited by the Association of Zoos and Aquariums (AZA)—including yours truly—for the best possible reason: as we continue to learn and share information, animals are living longer and longer lives.

*The term “geriatric” refers to older individuals, whether human or another kind of animal. Just as elderly humans require specialized medical care, other elderly animals do as well.

Caring for aging animals at the Seattle Aquarium

Here at the Aquarium, we have a number of geriatric animals in our care. For instance, Barney the harbor seal turned 38 in 2023, reaching a biological age that’s about the equivalent of a 100-year-old human!

And, at age 22, Adaa the sea otter was the oldest sea otter living at an AZA-accredited zoo or aquarium in the U.S. at the time of his passing in 2022. He was also the oldest male sea otter on record in the AZA studbook.*

*What’s a studbook? It’s a document that keeps track of information such as age, significant events like births or deaths, parentage and taxonomy (or the science of classifying and naming organisms). Staff at zoos and aquariums like the Seattle Aquarium work with the AZA to maintain regional studbooks for a wide variety of species. This demographic history is an invaluable tool to help guide conservation projects.

Aging is a complex process that refers to changes in all the systems and functions of an animal’s body; however, aging develops at different rates in different species. Some species of Pacific salmon, for example, have a very brief life (chronologically), dying soon after a single spawning event when they are a few years old. Spotted lagoon jellies also have shorter life spans—just three to four months. Rockfish, on the other hand, may live for over a hundred years!

Evolving care over time

The goal of geriatric care is to maintain the best possible quality of life for the individual animal during a time when they would normally be vulnerable to predation or unable to source food for themselves in the wild. Geriatric care at AZA-accredited zoos and aquariums, like ours, is respectful to each individual animal—for their life and its intrinsic value.

What that care involves differs by species and by individual. Our animal care staff work hard to create and maintain environments for aging animals that are safe and easy to use. This can be challenging for the variety of species living together in our larger habitats, such as the Window on Washington Waters and Underwater Dome. In those instances, Aquarium aquarists use their understanding of animal behavior and feeding preferences to provide the best environment possible.

How does care evolve over time for marine mammals at the Aquarium? As these species begin to reach—and exceed—their chronological life expectancy in the wild, animal care staff may begin to adjust how they work with them. For instance, as mammals age, their risk of contracting several age-related eye diseases (such as cataracts and macular degeneration) increases, just as it does in aging humans. If visual acuity (or keenness of perception) is reduced, the Aquarium’s animal care specialists introduce more verbal and tactile cues, such as gently brushing past their whiskers. Arthritis (also known as degenerative joint disease) is also common in all mammals as they age. Just as it does for humans, management may include anti-inflammatories, joint supplements, diet modifications and adapting the environment to meet the mobility needs of the individual.

Providing the very best care and quality of life for the animals entrusted to us—at all stages of their lives—is a vital part of our mission, Inspiring Conservation of Our Marine Environment. Learn more about animals at the Aquarium on our website or, better yet, plan a visit with us soon!

Watch our care team welcome a critically endangered bowmouth guitarfish in need of a safe home

Posted on February 26, 2024February 23, 2024 by Emma Leiser

It’s difficult to describe a bowmouth guitarfish. It’s even harder to see one in the wild.

The bowmouth guitarfish (Rhina ancylostomus) has been in its current form for millions of years—and it shows. These prehistoric-looking, blueish-grey fish appear to be part ray, part shark and even part dinosaur. They sport gills on their undersides, a telltale sign that they are, in fact, rays.

Elusive and endangered

Though they live close to shore, sightings are rare. The bowmouth guitarfish is classified as “Critically Endangered” on the International Union for Conservation of Nature (IUCN) Red List of Threatened Species®, meaning they have an extremely high risk of extinction.

Earlier this year, the Seattle Aquarium had an unexpected opportunity to provide a safe home to a bowmouth guitarfish pup. And next summer, visitors to the Aquarium’s new Ocean Pavilion will have the chance to be part of her surprising story.

And then there were nine!

The pup’s mother was caught in a commercial fishing set net off the east coast of Taiwan. What happened next surprised everyone: while in a holding pool at the fishing center, the mother gave birth to nine live pups.

Our conservation partner in Taiwan, Fred Fan of Fred Fan Aquatics, quickly diverted the animals to a safe place. He then contacted the Seattle Aquarium to work on finding them a long-term home. There are no marine-protected areas where the mother was caught, and fishing for bowmouth guitarfish is legal throughout many regions of Asia. As a result, releasing the mother and pups would have put them at risk of getting caught in another net.

Pups provide hope

The existence of nine bowmouth guitarfish pups in one place felt both miraculous and daunting.

Fan and the Seattle Aquarium contacted additional conservation partners in the region and North America, knowing that accredited aquariums have animal care and species recovery expertise.

Late one night in January 2023, the pups—donated by Fan—arrived from Taiwan to the Seattle Aquarium’s offsite Animal Care Center. There, eight pups would quarantine and receive care for several weeks before moving to teams at the Georgia Aquarium, Shedd Aquarium and Disney’s Animals, Science and Environment. And one female pup would remain in Seattle.

No time to waste

Globally, around 400 species of elasmobranchs—sharks and rays—are threatened, largely due to overfishing. In fact, an estimated 100 million individual sharks are killed by people every year. Fishing records for bowmouth guitarfish suggest we’ve lost more than 80 percent of the species in recent years.

Meanwhile, accredited aquariums have been caring for bowmouth guitarfish since 2005. In 2014, a bowmouth guitarfish pup was born in an aquarium for the first time.

We’re still learning about these solitary, elusive fish. We know that they live in relatively shallow, coastal waters, where they stay close to sandy bottoms. They like to crunch on the crustaceans and mollusks they find on the ocean floor. (The bowmouth guitarfish who will live at the Aquarium’s new Ocean Pavilion eats restaurant-quality, sustainably sourced lobster, shrimp and bony fish.)

Though bowmouth guitarfish are rare, they are also wide-ranging. They’re found in coastal areas throughout the Indo-West Pacific, including from South Africa north to the Middle East, South Asia, Southeast Asia, north to Japan and south to Australia. This range provides the chance for many communities and people to be part of the effort to restore their numbers.

Sharing knowledge is key

In November 2023, Fred Fan, aquariums from across the world, academic partners and conservation leaders met at Shedd Aquarium in Chicago to discuss the role aquariums can play in preventing bowmouth guitarfish from going extinct, as well as the structure and development of programs to aid in their recovery.

Restoring wild populations requires trust, partnership, expertise, genetic diversity of the species and time—the least available resource a critically endangered species has. Even so, there’s hope and a highly committed team of marine scientists, researchers and care experts working on these plans.

Beginning next summer, when you visit the Ocean Pavilion, you’ll meet the bowmouth guitarfish in our care and learn how you can join efforts to advocate for the survival of this ancient, fascinating species.

She sees sea otters by the nearshore: Tracking sea otter populations with Dr. Shawn Larson

Posted on September 27, 2023June 17, 2024 by Emma Leiser

This story is part of our Nerdy Science Series—how we’re using research and technology in service of a healthy ocean.

Guests at the Seattle Aquarium know how fun it is to watch sea otters eat and play. But for sea otter researchers, watching these adorable animals on Washington’s outer coast also provides valuable scientific information. By keeping track of wild sea otter populations through regular surveys, Dr. Shawn Larson of the Seattle Aquarium and her team hope to better understand the important role otters play in the marine ecosystem and what the future might hold for them.

Searching for sea otters on Washington’s outer coast

Each June for the past 23 years, Seattle Aquarium researchers have participated in a statewide, multiday survey of the Washington sea otter population, organized by the U.S. Fish and Wildlife Service and the Washington State Department of Fish and Wildlife.

Shawn and other Seattle Aquarium staff assist by forming ground teams at specific locations along the coast to carefully count all the otters in an area. The team usually leaves bright and early to hike to the observation point, where they set up their spotting scopes and start looking for otters.

They also record information on the otters’ ages and behaviors. During the survey, a plane circles above large groups of otters—known as rafts—to take high-quality digital photographs. Researchers count the otters in these photos later.

The otters tend to float about a kilometer (a little over half a mile) from the shore in groups of up to 1,000. It can be hard, at that distance, to distinguish rafts from clumps of kelp floating nearby. But Shawn, a seasoned otter spotter, knows to look for heads and flippers. Otters also tend to appear black, while kelp looks dark brown.

The Seattle Aquarium also does surveys of the local population monthly, documenting their numbers and diets. Like us, otters have preferred foods. If they’re available, otters will go for sea urchins, crabs and clams. When those become scarce, otters will turn to snails, mussels and sea cucumbers. Shawn has even seen otters eat a giant Pacific octopus!

“Their diet starts to diversify…and that’s when we know that their population has pretty much reached its carrying capacity—meaning the limit for that area,” Shawn says.

Happily, the sea otters in Washington are doing well. Their population is steadily growing with an increase of about 10% each year. They’re growing large and raising many pups, suggesting that these days, there’s plenty of their favorite foods on the outer coast.

Scientists still have a lot of questions about sea otters

Despite decades of research, scientists are still uncovering new information about sea otters. We know that otters eat sea urchins that would otherwise consume kelp. So, where there are otters, there are usually also healthy kelp forests, which serve as habitats for an array of nearshore marine life. However, researchers seek a deeper understanding of how sea otters impact nearshore environments.

"They're kind of a mystery in a lot of ways. There's a lot we do know about them, but there's a lot we don’t."

Dr. Shawn Larson, senior conservation research manager, Seattle Aquarium

“We know that sea otters tend to structure the nearshore where they live, but exactly how does that work? What are the pieces of the puzzle that make it work?” Shawn says.

To unravel the mystery, the Aquarium is in the early stages of using a remotely operated vehicle, or ROV, to study otter foraging behavior in kelp forests on the outer coast. By going underwater to where the action is, the ROV will provide in-depth footage and data on sea otter foraging behavior.

A better understanding of sea otters and kelp can’t come soon enough. Kelp is highly effective at sequestering carbon, which could help offset some effects of climate change.

"I hope that we continue to do this work for decades to come… The food sea otters are able to catch really will show how they are able to adapt or not to oceanic changes."

Dr. Shawn Larson, senior conservation research manager, Seattle Aquarium

Another question researchers are exploring is how sea otters will react to climate change.

With up to 1 million hairs per square inch, their dense coats keep them warm in the chilly waters of the Pacific. But otters have trouble expelling heat. Rising ocean temperatures could push them farther north. At the same time, otters tend to thrive in nearshore environments. Rising sea levels and melting sea ice could provide more habitat for them.

“We just don’t know. There could be dramatic negatives with climate change for sea otters and there could be dramatic positives,” Shawn says.

How to help sea otters in the wild

One thing we do know is that sea otters need a clean home. Trash that ends up in the sea can reach them via ocean currents. By properly disposing of trash, you can help keep the ocean clean for sea otters and other marine life.

Consider reducing plastic consumption and choosing reusable options when you can. Better yet, volunteer at a beach cleanup to remove plastic and other trash from our shores. You can even get your friends involved!

For more ways to help the ocean and all that depend on it (including humans!) check out our Act for the Ocean page.

Seattle Aquarium welcomes adorable new addition: A tufted puffling!

Posted on August 21, 2023May 9, 2024 by Emma Leiser

The Seattle Aquarium got a little (or a lot) cuter on August 3 when we welcomed a new tufted puffin chick, aka a “puffling!” This fluffball is the first puffling chick to hatch at the Aquarium since 2019.

The doting parents are longtime bonded pair Dora (who wears a yellow band on her left leg) and Boots (who sports red and blue bands). Tufted puffins generally mate for life and raise one chick at a time. Couples share parenting duties, like nest building, egg incubation and feeding their chick.

Like most animals, birds are vulnerable when they are young. Sadly, in the wild, many tufted pufflings don’t survive to adulthood. At the Aquarium, this chick is benefiting from a protected space and top-notch care from both animal and human caretakers. Dora and Boots, along with our dedicated Birds & Mammals team, have been keeping a close watch on the little one.

So far, the chick has a healthy appetite and is doing well. Talk about a tough little puff!

Privacy for the puffling

Dora, Boots and their little one have a nest in a secluded burrow in the upper section of their habitat. The chick will stay out of sight for a while, taking time to grow. Our team expects the puffling to fledge, or leave the burrow and join other members of the habitat, this fall.

In the meantime, Aquarium guests can check out other seabirds—including SEAlebrity tufted puffin Phelps—in the Birds & Shores habitat. You might even catch Dora or Boots gathering fish to bring to the chick or just taking a rest. Parents need breaks too!

To learn more about tufted puffins, aka the “parrots of the sea,” check out their fact page.

P.S. Our Birds and Mammals team is still deciding on a name for the little fuzzball. Keep an eye out on the Aquarium’s social media channels for the name reveal!

How can we stop sharks from going extinct?

Posted on August 15, 2023June 17, 2024 by Emma Leiser

This story is part of our Nerdy Science Series—how we’re using research and technology in service of a healthy ocean.

Sharks have roamed the ocean since before dinosaurs walked the earth. But today, around a third of the world’s 500+ shark species are threatened with extinction. New research co-authored by Riley Pollom of the Seattle Aquarium offers a way forward.

Why are sharks going extinct?

In a word: overfishing. Fishing—legal and illegal—kills around 100 million sharks every year. Sharks are targeted as sources of food and products; they’re also caught as bycatch in the hunt for other species. Because sharks take longer on average than other ocean animals to mature and reproduce, their populations often don’t recover quickly. Sometimes they don’t come back at all.

When shark species go extinct, the loss has a ripple effect. Ocean food webs are delicate, and the disappearance of a major predator can wreak havoc, sometimes causing the populations of other animals in the system to swell or shrink in unpredictable ways. The impact of these big changes often falls on coastal communities who rely on small-scale fishing for food and income. But as we lose species at an unprecedented rate, all of us will be affected.

Aquariums have the knowledge and capacity to play an important role in population management when things get dire. There’s a point of no return, and we need to avoid it.

Riley Pollom, species recovery program manager, Seattle Aquarium

A clue on how to turn the tide

A team of researchers that included Riley analyzed shark populations throughout the Western Atlantic Ocean over decades.

The team’s newest paper, “Conservation successes and challenges for wide-ranging sharks and rays,” focuses on 26 wide-ranging coastal sharks and rays in the Western Atlantic. All are on the IUCN Red List of Threatened Species. For decades, the Western Atlantic has faced a heavy demand for fishing. And sharks there have suffered, often as bycatch in the industry.

But—as the research team found—sharks in the Northwest and Western Central Atlantic are now making a comeback. In fact, some species that were on the verge of collapse in the 1980s and 1990s are now at stable or even growing populations.

Meanwhile, the situation is very different in the Southwest Atlantic. There, almost all populations of shark species—including many of the same species that are recovering in other regions—are still in trouble.

What’s fueled the difference? The answer, researchers found, is strong fisheries management.

Fisheries management refers to setting, enforcing and monitoring strict limits on how many animals can be caught, where and when they can be caught, and other important rules. Where these practices are robust, like the Northwest and Western Central Atlantic, shark and ray populations are rebounding. Where they are weak or nonexistent, many species are on the verge of extinction or heading that way.

“If strong fisheries management measures are implemented elsewhere, we would expect to see similar recovery,” Riley says.

Avoiding the extinction vortex

As the new research shows, protective measures work. But in some cases, those measures aren’t enough.

In a situation that conservationists call the “extinction vortex,” the population of an endangered species drops so low that even if other threats are removed, the species will not recover and may still go extinct. That’s because when populations are small enough, males and females have trouble finding each other. Those that do risk inbreeding, introducing genetic defects and weakening fitness.

In some cases, direct intervention by people might be the only way to avoid the extinction vortex. Increasingly, aquariums are getting involved in this work.

In 2020, the Seattle Aquarium helped launch ReShark—a global collective to recover threatened shark and ray species. ReShark’s first project is to breed and release Indo-Pacific leopard sharks, which have all but vanished from their home waters off the coast of Raja Ampat, Indonesia. Projects like this are still novel for aquariums—but so far, ReShark has had early success rearing shark eggs born in aquariums for release into their marine-protected home waters. (Read National Geographic’s coverage.)

As species recovery program manager, Riley is helping to lead the Aquarium’s growing programs and partnerships to bring back threatened species in Washington State and internationally.

What can individuals do?

Wherever you live, “Vote with the ocean in mind,” Riley says. “Learn and understand politicians’ stances on ocean policies and fisheries management policies.” When we’re informed, we can advocate for setting and enforcing strong fisheries management. Join the Aquarium’s email list to receive alerts on how you can support our state and federal advocacy on behalf of the ocean.