I know that gorillas and chimpanzees can learn sign language and use it to communicate. But can other animals use sign language, too?
A Christmas tree in Tokyo is being lit in a very unconventional way!
Our planet is inhabited by a host of strange and remarkable creatures, but few as strange or remarkable, if you ask me, as hagfish. Hagfish are eel-like fish about a foot long. They have a small mouth that lacks jaws and teeth. Learn more on this Moment of Science.