apes

NGeo Video: Self-Recognition in Apes

You may have read about the "mark test" or "mirror test." It's a way scientists study self-awareness or self-recognition. They surreptitiously put a colored dot or other mark on a subject -- often somewhere on the face. If, while looking in a mirror, subjects touch their marks or adjust their position to see them better, it's clear they understand they're looking at an image of themselves, rather than at other beings. Species that have passed the mark test include all great apes, bottlenose dolphins and magpies.

Photos of the top 25 most endangered primates

In case you missed it, a report in February listed the top 25 most endangered primate species. They include great apes, the Cross River Gorilla (Gorilla gorilla diehli) and Sumatran Orangutan (Pongo abelii), both of whose numbers are in the hundreds.

Syndicate content
 

JGI News and Highlights

Featured Video

Jane: A Snapshot

Watch this new video from National Geographic which highlights Dr. Goodall's life and legacy.

Featured Video

Featured Video

Saving Chimps From Snares (Graphic Images)!

This is the story of Mugu Moja, a young juvenile chimpanzee.