Birds View all Birds Tufted Puffin Tufted Puffin These birds appear to “fly” underwater! Details Common Mure Common Mure These diving birds are able to plunge up to 350–400 feet. Details Rhinoceros Auklet Rhinoceros Auklet They have a protruding white “horn” during breeding season! Details Black Oystercatcher Black Oystercatcher These birds break the shells of limpets and mussels with their beaks. Details Long-Billed Curlew Long-Billed Curlew Their bills are perfect for finding crustaceans in rocky crevices. Details Pigeon Guillemot Pigeon Guillemot Using its wings and feet, pigeon guillemots can hover underwater! Details Mammals View all Mammals Harbor Seals Harbor Seals These seals can remain underwater for close to 30 minutes! Details Northern fur seals Northern fur seals Male northern fur seals are up to six times larger than females. Details Sea otters Sea otters They bear the thickest fur of all mammals! Details River Otters River Otters River otters are commonly seen in Puget Sound. Details Fish View all Fish Dogfish Dogfish A shark that's also venomous! Details Puffers Puffers They rely on the ability to “puff up” as a defense mechanism. Details Rockfish Rockfish Some rockfish species can live to be well over 100 years old! Details Grunt sculpin Grunt sculpin Their large heads represent over half of their total body length! Details Triggerfish Triggerfish The strong teeth of triggerfish keep growing throughout their lives. Details Wolf Eel Wolf Eel Not really an eel - just a long, skinny fish! Details Cephalopods View all Cephalopods Dwarf Cuttlefish Dwarf Cuttlefish They can change their color, pattern and texture in the blink of an eye. Details Giant Pacific Octopus Giant Pacific Octopus These creatures have blue blood, eight arms and three hearts! Details Other Invertebrates View all Other Invertebrates Corals Corals You can see both warm- and cold-water corals at the Seattle Aquarium. Details Hermit Crabs Hermit Crabs There are over 500 species of hermit crabs around the world. Details Moon Jelly Moon Jelly Jellies have been around for hundreds of millions of years! Details Sea Anemone Sea Anemone These creatures can survive at depths of more than 32,000 feet. Details Sea Star Sea Star Sea stars don’t have brains but are still able to detect light! Details Giant Clams Giant Clams Giant clams stay permanently attached to the same spot for life. Details Plankton View all Plankton Plankton Plankton Some of the world’s smallest living creatures! Details Looking for more animal info? Check out our infographic library.