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A new jaguar cub at a Florida zoo is the first to be born there in 10 years. The baby was born at the Jacksonville Zoo on April 7 to “ first-time mother and father , Babette and Harry,” the ...
The performance of the eye in low light levels depends on the distance between the lens and the retina, and small birds are effectively forced to be diurnal because their eyes are not large enough to give adequate night vision. Although many species migrate at night, they often collide with even brightly lit objects like lighthouses or oil ...
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 ...
The jaguar (Panthera onca) is a large cat species and the only living member of the genus Panthera that is native to the Americas.With a body length of up to 1.85 m (6 ft 1 in) and a weight of up to 158 kg (348 lb), it is the biggest cat species in the Americas and the third largest in the world.
These night terrors can occur each night if the individual does not eat a proper diet, get the appropriate amount or quality of sleep (e.g., sleep apnea), well endure stressful events, and if they remain untreated. Adult night terrors are much less common and often respond to treatments to rectify causes of poor quality or quantity of sleep.
Hypothermia can happen in most mammals in cold weather and can be fatal. Baby mammals such as kittens are unable to regulate their body temperatures and have a risk of hypothermia if they are not kept warm by their mothers. Many animals other than humans often induce hypothermia during hibernation or torpor. [citation needed]
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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. Matutinal, a classification of organisms that are only or primarily active in the pre-dawn hours or early night.