CAUSES OF EXTINCTION -
1. HUNTING -
2. FOREST FIRES -
It is held that forest fires resulting from human activity or mistake have caused the elimination of many sps. of wild life.
3. DISTRUCTION OF HABITATES -
Destruction of natural habitats causes the most serious threat to wild life.
Habitats are destroyed by many human activities due to development work, deforestation, pollution, cleanliness (vultures are about to extinct).
4. PHYSICAL ALTERATION OF ENVIRONMENT -
Any physical change in the routes of the migratory birds or fishes adversely affects them.