Until this year, scientists hadn't seen the Bouvier's red colobus monkey in the wild since the 1970s.
New fossil evidence points the way toward solving the mystery of how the animals arrived in the New World.
Mustaches and eyebrows help certain monkeys recognize each other, research finds.
The video may be the first of a golden cat hunting in the daylight.
The genial macaque garnered 1,467 votes, beating out 15 other finalists.
It's not just celebrities who know how to show off their assets.
Animals in the wild can learn from instructional videos, according to new research that opens the door to further education of animals.
The US study is the first time such a development has been shown in an animal that is similar to humans.
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