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.
There are three species of sifaka: Coquerel's sifaka, the diademed sifaka, and the golden-crowned sifaka. The golden-crowned sifaka wasn't photographed until 1982 and wasn't known to be a separate species until 1988. They are the smallest of the sifakas and among the most endangered. There may be fewer than 10,000 living in the wild. All sifakas are threatened by the destruction of their forest habitats.