@Pokequaza
Because my Astronomy teacher said so.
If you think about it, since there are many animals who have evolved to be like this through many many evolutionary branches that are unrelated to each other (e.g. dinosaur and mouse), then what is to say that this won't be the case on other planets?
(EDIT: 500th Post )
If you think about it, since there are many animals who have evolved to be like this through many many evolutionary branches that are unrelated to each other (e.g. dinosaur and mouse), then what is to say that this won't be the case on other planets?
(EDIT: 500th Post )