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Some people believe that the giraffe's tongue is blue or purple in color so that they do not get sunburned from feeding all day. The long tongue, which can be extended almost 20 inches is helpful to pluck food down from hard to reach places.

It has also been said, that the tongue is blue/black/purple in color because it has very few blood vessels. This means that the surface tissue of the tongue will have a darker pigment associated with it (the blue/black tone). The lack of blood vessels makes the giraffe's tongue tougher then most other animals. This helps them to feed on trees and resist impact from sharp thorns such as the ones found on the Acacia trees that they feed on.

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8y ago

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