Why You Shouldn't Throw an Elephant Into a Black Hole

They can recognize themselves in a mirror, an ability that until recently was thought to be only found in great apes and dolphins.

From the article:

US researchers made the discovery by studying the behaviour of Asian elephants in front of a tall mirror.

One of the animals repeatedly touched a white cross painted on her forehead - a classic test used to assess mirror self-recognition in children and apes.

The study is reported in Proceedings of the National Academy of Sciences.

"We see highly complex behaviours such as self awareness and self-other distinction in intelligent animals with well-established social systems," said Joshua Plotnik, from the Yerkes National Primate Research Center, Emory University, Atlanta, Georgia.