What drives evolution forward? I heard that climate change drives species to evolve and adapt. Is there any other mechanism that is encoded in our DNA by which species can over abrupt changes, evolve and adapt?
Say for example Jupiter's moon Europa. If I find species of fishes here in Earth that could theoretically, barely survive on those oceans. If I come back in 5 million years will they look the same they did when I placed them there? or is the process of natural selection universal, and I would expect to see changes in the fishes due to their new environment which is not Earth. basically would foreign species also evolve and adapt.