WiseBlindDragon
WiseBlindDragon t1_iqyjilb wrote
Reply to TIL earthworms are hermaphrodites. Each carries male and female reproductive organs. When mating, two individual earthworms will exchange sperm and fertilize each other's eggs. by OccludedFug
Obligate cross-fertilizing hermaphrodites, lots and lots of living things reproduce this way. If you think that is exciting, wait till you hear about PLANTS
WiseBlindDragon t1_iqyjy22 wrote
Reply to comment by OccludedFug in TIL earthworms are hermaphrodites. Each carries male and female reproductive organs. When mating, two individual earthworms will exchange sperm and fertilize each other's eggs. by OccludedFug
Generally there are controls to avoid self insemination as it quickly leads to dangerous levels of inbreeding.