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Giraffes, just like humans, have seven cervical vertebrae. Unlike humans, giraffe cervical vertebrae are attached to each other with ball and socket joints, making them able to bend their necks in ...
Thus, these nerve cells have a length of nearly 5 m (16 ft) in the largest giraffes. [78] Despite its long neck and large skull, the brain of the giraffe is typical for an ungulate. [80] Evaporative heat loss in the nasal passages keep the giraffe's brain cool. [54] The shape of the skeleton gives the giraffe a small lung volume relative to its ...
A Penn State researcher has been trying to get to the bottom of the age-old question of why giraffes have long necks. Focus on research: Female giraffes drove the evolution of long necks, new ...
Giraffes gain their long necks by a different heterochrony, extending the development of their cervical vertebrae; they retain the usual mammalian number of these vertebrae, seven. [1] This number appears to be constrained by the use of neck somites to form the mammalian diaphragm muscle; the result is that the embryonic neck is divided into ...
Strips cut from the striped part of the skin of an okapi, sent home by Sir Harry Johnston, were the first evidence of the okapi's existence to reach Europe.. Although the okapi was unknown to the Western world until the 20th century, it may have been depicted since the early fifth century BCE on the façade of the Apadana at Persepolis, a gift from the Ethiopian procession to the Achaemenid ...
African giraffes are in danger of becoming extinct. Hunting and poaching have decimated the continent's giraffe population by about 40 percent, according to one estimate. There are now only about ...
The long neck is a result of mating. Male giraffes fight over females by wrapping their necks around eachother. The one with the longer neck usually has more force and wins the right to breed with the female. As a result the gene for the long neck increases within the population because it increases the giraffes chances for breeding. The ...
The giraffe weevil (Trachelophorus giraffa) is a species of small weevil endemic to Madagascar. [2] They are black-bodied and have bright red elytra covering their wings. . Giraffe weevils are known for their elongated necks, with the males having necks 2 to 3 times the size of their female counte