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In birds, sleep consists of "periods of eye closure interrupted by short periods of eye-opening." [This quote needs a citation] During the short periods of eye-opening, electroencephalographic (EEG) studies indicate that the birds are still sleeping; the voltage level in the brain is identical. [1] Birds restore their arousal thresholds during ...
Most species of birds are able to detect approaching predators during unihemispheric slow-wave sleep. During flight, birds maintain visual vigilance by utilizing USWS and by keeping one eye open. The utilization of unihemispheric slow-wave sleep by avian species is directly proportional to the risk of predation.
Sleep can follow a physiological or behavioral definition. In the physiological sense, sleep is a state characterized by reversible unconsciousness, special brainwave patterns, sporadic eye movement, loss of muscle tone (possibly with some exceptions; see below regarding the sleep of birds and of aquatic mammals), and a compensatory increase following deprivation of the state, this last known ...
Crepuscular, a classification of animals that are active primarily during twilight, making them similar to nocturnal animals. Diurnality, plant or animal behavior characterized by activity during the day and sleeping at night. Cathemeral, a classification of organisms with sporadic and random intervals of activity during the day or night.
The study analyzed data from 63,676 nurses from the ages of 45 to 62 and found that those who preferred to stay up late were 54% more likely to have unhealthy lifestyle habits, such as smoking ...
Crepuscular, a classification of animals that are active primarily during twilight, making them similar to nocturnal animals. Diurnality, plant or animal behavior characterized by activity during the day and sleeping at night. Cathemeral, a classification of organisms with sporadic and random intervals of activity during the day or night.
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The tawny frogmouth was first described in 1801 by the English naturalist John Latham. [4] Its specific epithet is derived from Latin strix 'owl' and oides 'form'. Tawny frogmouths belong to the frogmouth genus Podargus, which includes the two other species of frogmouths found within Australia, the marbled frogmouth and the Papuan frogmouth. [5]