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 ...

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 ...

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 ...

If you're not really into salt-water tanks or don't spend a lot of time in coral reefs, there's still a high probability you may have heard of the bluestreak cleaner wrasse fish. Likely because last ...

Here’s a fun test: Dab some blush onto the forehead of a six-month-old baby and plop them in front of a mirror. They might look at their reflection with curiosity but ignore the rouge. Redo the ...

The mirror test—sometimes called the mark test, mirror self-recognition (MSR) test, red spot technique, or rouge test—is a behavioral technique developed in 1970 by American psychologist Gordon Gallup ...