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 ...

Asian Elephant Credit: Wikimedia Commons An enormous mirror that allowed full-body viewing was used on Asian elephants tested in 2006. One female named Happy became the standout who recognized her ...

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 ...