1) because of the people destroy their homes.
2) because of the people who kills them.
3) because of the other carniverous animal eat the other animal for them to have food in order to survive
They fail to adapt to a new environment, or environmental pressures, such as human encroachment on the species range, will drive the species into extinction.
Extinction.
An extinction event.
There is probably a more complicated answer, but if animals can't reproduce, they go extinct.
An extinction event.
This term is extinction.
Extinct (Extinction)
The extinction rates of terrestrial and freshwater organisms varies per location. This is largely dependent on other growing and declining populations.
Extinction is part of the Theory of Evolution. This goes along with natural selection and survival of the fittest. Organisms that go extinct do so because they are no longer able to survive in the habitat.
They could not hibernate or go very long without resources.
Extinction, maybe?
Transformation is the process in which unicellular organisms that protect themselves from extinction. A unicellular organism takes in DNA from outside and tries it on for size.
Extinction