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 ...

Infinite mirrors are a fun party trick, but the physics behind this phenomenon explains why it may not be true. When you purchase through links on our site, we may earn an affiliate commission. Here’s ...

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 ...

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 ...

Sometimes, it's good to hold a mirror up to yourself. But that's probably not the best advice for Simba, the feline star of an Instagram video that has recently gone viral. Simba was just born in ...

Curious visual effects can be obtained through the use of mirrors. The author discusses his work and the work of his students as they employed groups of flat mirrors, curved mirrors and two-way ...