Giraffes have black tongues because they bit trees to eat them; their tongues are black and rough
Because they eat rough things.
black
A giraffe's tongue is 18 to 20 inches long and blue-black colored. Some people think the color is to keep the tongue from getting sunburned.
a giraffe's tongue is purple and sometimes blue
The color of a giraffe's tongue is blue-purplish color.A giraffe's tongue is purple because it lick's the leaves off the trees. Since it's tongue is out so much it might get sun burn. So, a giraffe's tongue is purple so it doesn't get sun burn!A Giraffes tongue is black and its soft but the surface is rough so it can grab leaves from the trees.
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.
A giraffe's tongue is 18 to 20 inches (46 to 50 centimeters) long and blue-black. Source- http://www.sandiegozoo.org/animalbytes/t-giraffe.html
The Chow Chow is the most well know purebred dog with a wholly black or blue tongue, but the chow is not the only breed with a black tongue. The Chinese Shar Pei also has a blue/black tongue.
A giraffe's tongue can be up to 20 inches long!
Well, as they are called black bears, a black bears tongue is actually blue.
The giraffe.
I believe the blue waffle
depends, is its blue then its tongue is orange but if its orange its tongue is blue :]
purple