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This advantage is real, as giraffes can and do feed up to 4.5 m (15 ft) high, while even quite large competitors, such as kudu, can feed up to only about 2 m (6 ft 7 in) high. [64] There is also research suggesting that browsing competition is intense at lower levels, and giraffes feed more efficiently (gaining more leaf biomass with each ...
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 ...
In captivity, giraffes only sleep about 4-1/2 hours a day. I guess they're insomniacs! ... They also sleep standing up, "This adaptation is vital for their survival, as lying down for extended ...
According to Wildlife FAQ, "On average, adult giraffes sleep for about 30 minutes a night, and their sleep cycles are typically around 35 minutes or shorter. This brief period of sleep is divided ...
A little bit more effort on your side is requested. When do giraffes sleep standing and when lying? I am pretty sure you can phrase the sentence as "Giraffes can sleep standing but need to lie down, curled up and with their head resting on their rump or hind legs, to enter REM sleep." I'm not gonna do the research (now). Nageh
Despite their limited sleep time, giraffes seem to function well and thrive in their natural habitat." Baby giraffes don't sleep a whole lot more than that, they only sleep a few hours a night total.
A draft horse sleeping while standing up. The stay apparatus is an arrangement of muscles, tendons, and ligaments that work together so that an animal can remain standing with virtually no muscular effort. [1] It is best known as the mechanism by which horses can enter a light sleep while still standing up. [2]
Despite their limited sleep time, giraffes seem to function well and thrive in their natural habitat." Baby giraffes don't sleep a whole lot more than that; just a few hours a night total.