In theory, a reaction to an out-of-place mark in a reflection is assumed to be evidence of self-recognition for other animals ...

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

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 ...

Animals have surprised scientists with their intelligence for decades. From chimpanzees to dolphins, many species have shown they can recognize themselves. Now, a small fish called the cleaner wrasse, ...

A shrimp scrap drifted down the face of a mirror, and a small reef fish tracked it like it was watching a slow-motion ...

Source: Bert de Tilly, via Wikimedia Commons. Distributed under a CC BY-SA 4.0 license. Since the 1970s, scientists have employed the mirror test as an assay of self-awareness. If an animal or child ...

Humans are well known for looking in the mirror and responding to their reflections. Interestingly, scientific research has revealed that it is a rare trait among animals, with only a few species ...

Awareness, especially self-awareness, is very difficult to study. Self-awareness evolved among our animal ancestors and is found in their descendants today. Its presence can be detected using the ...

Source: Bert de Tilly, via Wikimedia Commons. Distributed under a CC BY-SA 4.0 license. Since the 1970s, scientists have employed the mirror test as an assay of self-awareness. If an animal or child ...

Adélie penguins seem to have passed a portion of the mirror test, in which animals that see their reflection in a mirror appear to recognise that they are seeing themselves and not another individual.