Owl Monkey Also known as the night monkey, the owl monkey (Aotus spp.) is the only nocturnal genus of true monkeys. These unique primates inhabit rainforest regions of Central and South America. They feed at night among the tree canopy, foraging fruits, flower nectar, vegetation, insects, and occasionally small birds and mammals. When they’re not active, the owl monkey sleeps in family groups in tree hollows, dense brush, or vine-covered trees. Male African Lion While their female counterparts average 15-18 hours of sleep, male African lions (Panthera leo) spend 18-20 hours per day on average snoozing. Most active from dusk to dawn, these big cats primarily spend their days sleeping in the shade. Since healthy adult African lions have no natural predators, they can sleep out in the open among diurnal animals. It’s not unusual for researchers to spot a massive male lion sleeping belly up with his paws in the air! As highly social animals, they can also take turns sleeping while other members of the pride keep a watchful eye on their cubs and surroundings. Donkey donkeys (Equus asinus) all generally sleep about 3 hours per 24-hour period. These highly social, diurnal animals tend to sleep in groups at night with individuals taking turns watching for threats. To enter the REM cycle of sleep, donkeys must be lying down. They rarely sleep on their side and instead lay in an upright position with their legs curled underneath.
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Wednesday, October 1, 2025