Rachael has a degree in Zoology from the University of Southampton, and specializes in animal behavior, evolution, palaeontology, and the environment. The rest of this article is behind a paywall.

In the new experiment, roosters made fewer alarm calls, meant to warn peers of predators, when placed in front a mirror versus when standing near another rooster. Stefano Spaziani / picture alliance ...

A dog by the name of Harley has shown herself to be one smart puppy after seemingly deducing that she is looking at her own reflection in the mirror. In a video posted to TikTok under the handle ...

A mirror can reveal more than just an image. It can highlight nuanced personality traits like vanity or insecurity. Placed in front of an animal of another species, a mirror can serve as a valuable ...

In 1970, a psychologist named Gordon Gallup Jr. anesthetized four chimpanzees and applied red dye to their eyebrows. When the chimps came around, they caught sight of their reflections in a mirror ...

Daniel Povinelli was in high school when he first read about a clever experiment, published in 1970, that showed chimpanzees—but not monkeys--can recognize themselves in mirrors. "I bought into the ...