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.
Maui's dolphins are listed on the IUCN Red List as Critically Endangered, and by the Department of Conservation in the New Zealand Threat Classification System as Nationally Critical. Maui's dolphins are only found off the west coast of the North Island of New Zealand.