6. You may hear a sea lion before you see it. These noisy pinnipeds bark to mark their territory and signal danger. They also bleat, growl and roar. So what does a seal sound like? Seals have their own means of communicating, including hissing, growling and moaning.
Did you know? The word pinniped stems from the Latin terms pinna and ped, meaning fin-footed.
Put your pinniped knowledge to the test during your next visit to the Smithsonian’s National Zoo! See if you can spot the difference between the California sea lions and gray and harbor seals at American Trail.