Explain the classification of wildlife given by IUCN.

For the wildlife protection, in 1972 Wildlife protection Act was framed. IUCN (International Union for Conservation of Nature) was formed in 1948 for world consciousness. IUCN compiled a book known as Red Data Book and defined the following species to be protected:

● Extinct species: These species are not alive and they have become extinct from the world like Dodo, dinosaurs etc.

● Endangered species: These species needs to be taken care of. Some steps should be taken for their conservation and protection otherwise they will be extinct.

● Critically endangered species: These are near to the endangered species.

● Vulnerable species: They are very less in number and need protection to avoid extinction. They are present in very limited area. e.g. : Polar bear etc.

● Threatened species: These species are present on earth but their distribution is still unknown.