Why extinction occurs?

Extinction happens because of one of three reasons;

1- the animal can not adapt to the environmental changes if they are occurring.

2- the animal has competition with another species that either takes over their territory or wiping out their main source of prey.

3- if this relates to modern times, extinction may happen because man has destroyed the species habitat, hunted the species, or wiped out the species main source of food.

One of the most common threats to extinction today is of global warming, and the devastating effects its having on the earth and the climate. Global warming is slowly warming up earth, slowly melting the north and south poles, causing the changes in sea level and temperature. immediately effecting the animals across the world.