Species are species that are susceptible to endangerment in the future

Endangered species

Explanation:

The endangered species are usually defined as those species that are on the verge of extinction. For example, Tigers, Mountain gorillas, Leather-back sea turtles and Snow leopards.

These species are very limited in number and are very rarely found. The wiping out of these species is caused due to the loss of habitat as well as due to the loss of genetic variation. The anthropogenic activities are also responsible for the elimination of their habitats.

tocharian and anatolian were belaved to become extinct during the ninth century. =)