In theory, a reaction to an out-of-place mark in a reflection is assumed to be evidence of self-recognition for other animals as well. Chimpanzees, elephants, and dolphins are just some that have ...

Learn how cleaner wrasse used a mirror and even dropped food to test their reflections, a behavior linked mostly to mammals.

Cleaner wrasse have revealed a remarkable new side of fish intelligence. Marked with fake parasites, they used mirrors to inspect and remove the spots—far faster than seen in earlier tests. Even more ...

In the current study, the scientists observed new behaviors during a series of mirror test experiments, a widely used method ...

"Mirror mirror on the wall who's the fairest of them all?" Or, in modern language: Where's the closest mirror? I need to see if my hair is OK! You probably care about how you look when you approach ...