View additional Web and print resources for NATURE's "Chimpanzees: An Unnatural History."

NATURE interviewed Gloria Grow, the founder of Fauna Foundation, which cares for retired chimps.

Living a life of captivity leaves deep scars and identity crisis -- even in those chimps lucky enough to retire to a sanctuary like Fauna Foundation.

Sharing 99 percent of our DNA, chimps have been used in the study of infectious diseases, gene therapy, vaccine development, reproduction, and anatomy.

View additional resources, online and in print, for NATURE's "Deep Jungle: The Beast Within."

It turns out that chimps and humans have something else in common: the capacity to kill, and not just for food. Primatologist and Anthropologist David Watts discusses his research.

Accompany researchers in "Deep Jungle: The Beast Within" as they explore tropical forests for clues about the origins of humans and what our own future might hold.

One of the world's best known animal researchers surveys the results of more than three decades of painstaking study in Jane Goodall's Wild Chimpanzees.

One of the world's best known animal researchers surveys the results of more than three decades of painstaking study in Jane Goodall's Wild Chimpanzees.

One of the world's best known animal researchers surveys the results of more than three decades of painstaking study in Jane Goodall's Wild Chimpanzees.