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.
Rarest of All Apes. The Cross River Gorilla, with fewer than 300 individuals estimated to exist in the wild, and just a single identified member in captivity, is the most threatened of the gorilla subspecies, listed by IUCN as critically endangered.