Parts of the teeth include: â¢ Enamel: The hardest, white outer part of the tooth. Enamel is mostly made of calcium phosphate, a rock-hard mineral. â¢ Dentin: A layer underlying the enamel.
Most species of giraffes are not endangered. However, the West African (Nigerian Giraffe) is classified as endangered. Giraffe is not an endangered.Unlike elephants killed for â¦ tusks and the leopards killed for their hides ,the giraffes can only be killed for their meat and this is very rare.
Killer Whales Endangered. Some cetaceans are now facing an uncertain future because their populations have declined to the point that there are only few of them left in the world.