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Giraffe necks do more than help them reach high leaves in trees. They can keep a lookout for predators, but there is another reason they may have such long necks.
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 ...
This term refers to the act of two male giraffes engaging in a ritualized combat where they use their long necks as formidable weapons. Standing parallel to each other, the giraffes swing their ...
The okapi and the giraffe are the only living members of the family Giraffidae. The okapi stands about 1.5 m (4 ft 11 in) tall at the shoulder and has a typical body length around 2.5 m (8 ft 2 in). Its weight ranges from 200 to 350 kg (440 to 770 lb). It has a long neck, and large, flexible ears.
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 ...
The giraffe's head and neck are held up by large muscles and a nuchal ligament, which are anchored by long thoracic vertebrae spines, giving them a hump. [17] [63] [36] Adult male reticulated giraffe feeding high on an acacia, in Kenya. The giraffe's neck vertebrae have ball and socket joints.
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As a result of their towering height, giraffes spend most of their days grazing amongst the canopies of acacia trees. Our giraffe unit plan takes students on an All About Giraffes: A 5-Day Lesson Plan