Access to this video is a benefit for members through PBS Passport.
Up Next
Back to Show
Nature
Chimpanzees: An Unnatural History
Season 25
Episode 1
Individuals care for a population of once-captive chimpanzees that scientists used for research.
Support Provided By
Unlock with PBS Passport
54:19
It's one of the most brutal environments on Earth - so how does life carry on here?
Unlock with PBS Passport
54:24
Efforts to rescue the thousands of household pets left homeless by Hurricane Katrina.
Unlock with PBS Passport
52:58
NATURE visits one of the world's most spectacular aquariums.
Unlock with PBS Passport
54:06
Hawaii is a place of beauty. It is also a land of volcanoes, blizzards, and rockslides.
Unlock with PBS Passport
54:32
After a decades-long comeback, grizzly bears appear to be thriving.
Unlock with PBS Passport
54:07
Filmmakers take a dive of a lifetime to learn about the location's fantastic creatures.
Unlock with PBS Passport
53:17
In 1995, while filming wild horses in the mountains of Montana, Ginger Kathrens discovered
