they made their homes best suited for their environment by uses thier common sense and also they used their surrounding like if you had alot of trees but a little of snow........................you would would use the thing that you have most of to adapt to your environment
a clean environment is best suited for viviparous animals
A tundra
A large corporate environment
A large corporate environment
the ones which have mutations which would help them to survive
raising catteling
dodo
fewer mutation
rainforest
Darwin proposed that natural selection takes place as individuals best suited to their environment survive and reproduce, passing on their advantageous traits to offspring. This leads to the gradual progression of characteristics that are favorable for survival in a given environment.
Water Surface
excess body fat