Extinction (Biology) 2 Biological diversity conservation -- 1 Congresses 1 Congresses -- 1 Deforestation -- 1 End of the world -- 1 Environmental disasters 1 more ... Extinction (Biology) -- 1 Forest conservation -- 1 Influence on nature 1 Man -- 1 Mass extinctions 1 Moral and ethical aspects 1 Rain forest conservation -- 1 Tropics -- 1 less ...