#chrome-silver

The mirror test, sometimes called the mark test or the mirror self-recognition test (MSR), is a behavioural technique developed in 1970 by psychologist Gordon Gallup Jr. to determine whether a non-human animal possesses the ability of self-recognition.[1] The MSR test is the traditional method, or "gold-standard" of measuring self-awareness[2][3]—"the sense that one is an individual separate from the environment".[4]

Very few species have passed the MSR test. As of 2015, only the great apes (excluding gorillas), a single Asiatic elephant, dolphins and potentially other cetaceans, the Eurasian magpie, and some ants, have passed the MSR test. A wide range of species have been reported to fail the test including gorillas, several monkey species, giant pandas, sea lions, pigeons and dogs.