Photograph by Gordon Gahan
On the savannas of Senegal, chimpanzees are hunting bush babies with spearlike sticks, offering clues to our own evolution.
Whether you trace it to New York's South Bronx or the villages of West Africa, hip-hop has become the voice of a generation.
Kingo and his family of western lowland gorillas are giving researchers an intimate glimpse into their private lives.
2015 Traveler Photo Contest
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