(Mutations do create a minor amount of change.) If asexual reproduction survives at all, conditions must sometimes favor it, even in competition for a niche with sexually reproducing species.

Those outlier liaisons gave whiptails robust heterozygosity, which has been preserved by the identical replication—essentially, cloning—that occurs in asexual reproduction. It’s a genetic ...

Bacteria reproduce by cloning themselves through binary fission - a kind of asexual reproduction. In the right conditions, they can reproduce very quickly. Some species can replicate themselves in ...