Through evolution, things can change, like, the bacteria, that made things die quicker and adapt even more so they can live for much longer. Then they went into reptiles that made crocodiles and lizards that had legs, and they can live in water and they could walk on the land. And then it went to animals that could just only live on land, like mammals, cats and dogs, they don’t really go into the water. And it went to apes that would just live in the jungle because that’s their own habitat. And us humans, we obviously live in houses, different to all changes through past hundreds of millions of years.