Question

why giraffe has a long neck​

Answer 1

It appears obvious: the giraffe's neck, which can grow to as much as two metres in length, has been selected because it gives its owner exclusive access to the topmost leaves of the trees, and no other animal can reach them. This, then, is an adaptation designed to avoid competition for food with other animals.

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Answer 2

Answer:

Because it usually eats leaves on the trees

Explanation:

There's no such explanation for it but yes, some people do say that, they are naturally like that. But because of their long neck they eat leaves on the trees.