WebJan 29, 2024 · In fact, scientists recently found that the earlier ancestors of the giraffes had actually short necks, but their vertebras were longer compared to their width. [2] The same study found that giraffes did not evolved their long necks in a linear way. Even though the earliest giraffes already had slightly-elongated neck bones, evolution went back ... WebOct 7, 2015 · The age-old question of how the giraffe got its long neck may now be at least partly answered: Long necks were present in giraffe ancestors that lived at least 16 million years ago, a new study ...
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WebJul 7, 2010 · Long necks come at a cost. Because a giraffe’s brain is around 2 metres above its heart, the heart has to be big and powerful. In fact, for the blood to reach the brain it has to be pumped at ... Web9. one reason giraffes have long necks is do that they can reach food high in the tree top canopy. explain how giraffes got their long necks according to darwin and then how … dickins hopgood chidley llp
12 Most Popular Long Neck Dinosaurs - Dinosaur Facts For Kids
WebApr 12, 2024 · An adult giraffe can weigh up to 1,100 kg, yet its movement appears almost weightless. The giraffe has two different gaits, the ambling walk and the gallop. In contrast to most ungulates, the giraffe walks by swinging its long legs forward, first both legs on one side of the body and then both legs on the opposite side. WebOct 7, 2015 · The age-old question of how the giraffe got its long neck may now be at least partly answered: Long necks were present in giraffe … Web1. How is natural selection in the evolution of long necks in giraffes best explained?A Shorter-necked giraffes were killed by long-necked giraffes. B Giraffe necks grew longer because of the bone structure of the animals. C Giraffes with longer necks survived because they were better suited to the environment. D Long-necked giraffes mated only ... dickinson 00-2bp