Because of the environment they live in.
Because of the environment they live in.
Because of the environment they live in.
Because of the environment they live in.
Natural development and selection.
Guppies natural enemies are bigger fish. When guppies are eggs diffrent fish and sea creature will eat them.
Male guppies chase pregnant female guppies because they are trying to mate with them and fertilize their eggs. This behavior is natural for guppies and is a part of their reproductive process.
No, guppies can't be found in the natural habitat of a polar bear.
Because their population grows and their thing grows ;)
Its NaTuRaL sElEcTiOn if you didn't know.
They don't. The appearance of design in nature is an illusion that only the ideological keep to.
Adaptation does not allow for natural selection: natural selection causes adaptation.
No.