Zoologists, for example, once believed that studying chimpanzees in a cage would reveal everything about the animal. |
Most experts believe the unusual band of apes are giant chimpanzees that display gorilla-like behavior. |
Conniff explains that when chimpanzees approach an alpha member, they appear to reduce their body size a bit. |
The sanctuary will provide lifetime care for Federally owned or supported chimpanzees that are no longer needed for biomedical research. |
Here, Washoe was no longer the baby of the family but was now living with chimpanzees a few years younger than herself. |
Then we discovered tool-using animals, chimpanzees using sticks to dig ants out of anthills. |