Spoiler: It’s very loud. By Sabrina Imbler Starting in the late 2000s, Colleen Reichmuth and Ole Larsen made a number of visits to Six Flags Discovery Kingdom in Vallejo, Calif., to hear a walrus make ...

Whales serenade each other across thousands of miles, while dolphins call out other's "names" using signature whistles. Now, scientists have spotted gray seals using yet another form of underwater ...

Have you ever clapped your hands to get someone’s attention? The resulting “crack!” sound is hard to ignore, rising above and penetrating through any background noise. Now imagine trying to do it ...