The Chimp on Their Back

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Humans and chimps are remarkably similar — sharing 98.8% of DNA. But unlike humans, whose population grows 1.1% year over year, chimpanzee populations have declined by 50% over the past 60 years — here’s why.

WORLD CHIMPANZEE DAY is coming up. While we have many reasons to celebrate these remarkable beings, there are also many reasons why we should be concerned about their survival. All four chimpanzee species — Western chimps, Central chimps, Nigeria-Cameroon chimps, and Eastern chimps — are endangered and their numbers are continuing to decline due to human activity.

Today, there are as few as 170,000 chimps in the wild.

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