Gravel can't replicate, either sexually (judging by the lack of hardcore gravel porn) or asexually
The focus on organisms instead of any type of biological population is too narrow. I'm sure our microbiome undergoes evolution without leaving our bodies. Yes, a lot of semantics is involved to do with the dfinition of species and life (there are still those who argue that viruses are not living things).
(
Mudface The web isn't callipygian, Thu 9 Sep 2021, 14:33,
Reply)