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

What do octopuses see in a mirror image? “When the octopus approached the mirror, it changed colour – but only the side facing the mirror changed", says Eduardo Sampaio. Disclaimer: AAAS and ...

A species of penguin may have just seen itself into an exclusive club of creatures that recognize themselves in the mirror. An Indian research team put a dozen Adélie penguins in East Antarctica ...

When you look in the mirror, what do you see? In all likelihood, you see a complex shape that you immediately recognize as yourself. Now, a team of researchers has found that mice appear capable of ...

Alex Jordan had just surfaced from a dive off the coast of Corsica when he called me back last summer. “We’ve put mirrors in the wild,” he said. “It’s always a bit of a nightmare.” With the help of ...

Joining the likes of killer whales (Orcinus orca) and bottlenose dolphins (Tursiops truncatus), plus a number of primates, a common dark-furred mouse has passed what’s known as the mirror test, backed ...