How many more neck bones are there in a giraffe than in a human?

The giraffe has highly elongated neck bones, giving it its great height, but a giraffe has no more and no fewer vertebrae than a human.

Both a giraffe and a human also have the same number as a mouse, a pig, a dog, or an aardvark.

All mammals except for two—, the sea cow and certain sloths, —have exactly seven vertebrae in the neck.