Yezichek wrote:It doesn't change the fact that genetic diversity does not increase because the ratios of variation within species change. If we're in a time loop, we'll have a hard time creating the dinosaurs. Our bacteria have remained bacteria. Our fruit flies have remained fruit flies. Neither species gained new genetic code (although people were pressuring bacteria to do so (E. coli experiment)).
Maybe that's because they don't need to. Those species still exist because they are so well adapted. Many other species and greater groups of organisms have died out before. That's always because they weren't as well adapted or couldn't adapt fast enough.


). This simple organism mutated and became every single species we see today using a process known as natural selection.


