There are many kinds of animals

that are on their way to extinction

An endangered animal or plant is a species that is considered in immediate danger of becoming extinct. Its population is very small and it needs active protection to survive. In the United States, hunting of endangered animals is not allowed. Neither is importation of their meat, fur, tusks, blubber, or other products.

Source:The Marine Mammal Center

The tiger is the world's largest cat; a powerful and solitary predator
                          that once roamed widely throughout Asia. At the beginning of the last
                          century, there were an estimated 100,000 tigers in the wild. Today,
                          possibly fewer than 5000 remain. They live in small islands of forest
                          surrounded by a sea of humanity. Relentless poaching and habitat loss
                          threatens their existence. Sadly, unless we reverse the present rate of
                          decline, our children will grow up in a world without wild tigers. As it
                          approaches its darkest hour, the tiger's survival is now entirely in
                          humanity's hands...including yours. 

Source:

The Tiger Foundation