noun
- small nocturnal monkeys of Central and South America with large eyes, also called night monkeys or owl monkeys
Usage: zoological
Examples
- The douroucoulis are the only truly nocturnal primates in the New World.
- Researchers studied the sleep patterns of douroucoulis in the Amazon rainforest.
- Unlike other monkeys, douroucoulis have excellent night vision.
- The large eyes of douroucoulis help them navigate in darkness.
- Douroucoulis communicate through soft hooting calls at night.
- Scientists observed douroucoulis foraging for fruits and insects after sunset.