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 ...

This small fish shows self-awareness like apes.

A small coral reef fish can recognize itself in a mirror. This discovery challenges long-held ideas about animal intelligence.

Fish introduced to a mirror began to act strangely, swimming upside-down or spreading their fins. They also tried to scrape a mark from their throats. Reading time 5 minutes New research seems to ...

It might not seem like a big deal, but the ability to recognize that the face in the mirror is your own makes us part of a pretty exclusive club in the animal kingdom. Humans obviously can do it (from ...

NEW YORK – Scientists report that a fish can pass a standard test of recognizing itself in a mirror – and they raise a question about what that means. Does this decades-old test, designed to show self ...

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. For decades, self-awareness has been guarded as a very ...