You probably do too.
Bdelloid rotifers are invertebrates that live in water ponds, they reproduce by parthenogenesis* and researchers haven’t yet found any male, hermaphrodite individual or source of meiosis (DNA shuffling, as to say).
The widely spread assumption that variation requires sex ( at least among most multicellular organisms) doesn’t hold in the case of these guys; interestingly they show a considerable diversification ( over 400 species ) and very similar evolutionary patterns to those of sexual organisms, even though their asexuality is not a recent event (they quit about 100 million years ago, sigh).
The most puzzling question is obvious: How did they manage to survive and difersify without any genetic exchange?
This question remains open. Any anwser?
* growth of an embryo or seed without fertilization by a male. Parthenos= virgin, Genesis=birth. Like JESUS!! but without magic and fairies involved