Ants don't sleep, but they do have a cyclical pattern of resting periods. Research by James and Cottell in 1983 found that ants rest for about eight minutes every 12-hour period.
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Bluefish doesn't sleep. They are a type of pelagic fish that swim continuously and don't show signs of sleep . They're also known as snapper or tailor. Bluefish stop sleeping during their migration.
Source: Freepik
Butterflies don't sleep like humans do, but they do take rest become quiescent, at night or during the day when it's cloudy or cool. This can ensure that they have enough rest.
Source: Freepik
According to research, newborn orcas and their mothers may not sleep at all for the first month after birth. When they sleep, orcas only close one eye, with the left eye closing when the right half.
Source: Freeepik
Sharks don't sleep like humans do. They have active and restful periods, and they can engage in periods of deep rest. Sharks can rest in caves and shelters on rocky reefs, around seamounts.
Source: Freepik
Tilapia fish don't sleep until they are 5–6 months old. Tilapia are known to stay awake and active for the first 22 weeks after birth.
Source: Freepik
Spiders do not sleep in the same way that humans do, but like a human, they do have the daily cycles of activity and rest. Spiders can't close their eyes because they don't have eyelids.