Explain with reason why giraffe has long...

Explain with reason why giraffe has long neck.

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According to Lamarck.s theory of use and disuse, giraffes had to stretch their necks and forelimbs for feeding on leaves of tall trees because of which these organs were elongated. But this theory has been completely discarded. It is now proposed that, the giraffe.s neck evolved with time because of .necking. battle with time and natural selection, only giraffes with long necks survived.

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Giraffe has long neck because :

of evolution and adaption

their ancestors were long necked

environments is suitable for its long neck

they have become long due to their need from past

Darwin believed that a giraffe has a long neck because

a creator designed it that way

catastyrophes eliminated short-necked forms

its ancestors stretched their necks to get food

ancestral giraffes with slightly longer necks than other got more food and left more surviving off spring

The present day giraffe has a longer neck as a compared to its ancestors. It could be due to :

isolation

speciation

natural selection

inheritance of acquired characters