Humans are known to invent private hand gestures. Chimps in the wild do, too, a new study suggests. By Brandon Keim Parents and their children, or people who know each other well, often share some ...
In the forest near Wamba, a village in the Democratic Republic of the Congo, some of the last remaining bonobos breed, feed and lounge in the trees. Like other great apes, these animals have a rich ...
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