Chimpanzees are our closest relatives. They are also known as social existence. Their social ability is no lower than ours.
In the Mahale Mts.,Tanzania, they have been studied for as long as 30 years, in natural conditions. We would like to introduce some of the accomplishments about their society and ecology though a lot of facts remain unknown, since they are believed to live up to the age of about 50.
Long-term Studies of Wild Chimpanzees
Mahale Mts. National Park
Feeding and Ranging
Phylogenetic Position
Development
Social Structure
Hunting and Meat Eating 
Tool Use
Pan Africa News
C.H.I.M.P.P.Group
Human Evol. Home Page