Most cats can walk so silently that nobody can hear them coming. Some can climb trees in the twinkling of an eye, and some leap so lightly they almost seem to fly. ...

Male humpback whales are famous for singing long, complicated underwater songs. You can even download their songs from the internet! ...

Most plesiosaurs had long necks, but the short neck of Kronosaurus makes it look a little like a crocodile. It was over 30 feet long and had a shell-crushing bite. ...