A small nocturnal primate native to South America, also called a night monkey, characterized by large eyes and a nocturnal lifestyle.
From Tupi (South American indigenous language) 'durukuli' or similar, the native name for this monkey; adopted into scientific and common English through naturalist observations.
The durukuli is the only truly nocturnal monkey on Earth, and its name comes straight from indigenous languages—a reminder that indigenous peoples were the world's first biologists, naming and understanding animals long before Western science showed up.
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