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 some small subpopulations living in protected areas, and the parrotlets' are protected under Brazilian law; however, threats remain for this species. The vinaceous-breasted Amazon (Amazona vinacea) is an endangered parrot. It is native to parts of Brazil, Argentina and Paraguay.he orange-bellied parrot was listed as critically endangered in 2005. It is the only Neophema parrot species to be listed as such under Australia's Environment Protection and Biodiversity Conservation Act. The kakapo (Strigops habroptila) is critically endangered.