According to the International Union for Conservation of Nature (IUCN) there are many endangered species all over the world and some more than others. The IUCN helps the world find pragmatic solutions to our most pressing environment and development challenges.

The most critically endangered types of deer/antelope are the Addax, Hirola, Ader’s Duiker, Dama Gazelle, and the Saiga. These are found in parts of Africa, Europe as well as Asia. They are getting killed off because of other predators eating them or because of people hunting them.