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Penis fencing is a mating behavior seen in certain species of flatworm, all of which are hermaphroditic, having both ovaries (which produce ova) and testicles (which produce sperm).
The flatworms “fence” with their penises, which are two-headed, pointed, and white. The “fencing” is a violent battle during which each flatworm attempts to pierce the skin of the other, to inseminate it. The sperm is absorbed through the skin, where it fertilizes the ova in the “loser,” who becomes the mother.
Oh AP Biology, I love you! :)
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sharedburden reblogged this from animalswholoveanimals and added:
Oh AP Biology, I love you! :)
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cyparissus reblogged this from aishahugs and added:
THIS IS FASCINATING
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aishahugs reblogged this from charlesherbertbest and added:
yeah i’m just going to reblog this
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charlesherbertbest reblogged this from animalswholoveanimals and added:
If anyone doesn’t know what penis fencing entails.
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x-x-m-i-c-k-e-y-x-x liked this
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greenporno reblogged this from animalswholoveanimals and added:
well helloooo there fellow animal-sex tumblr! thank you for sharing some...weirder...
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quidditchisnotjustagame reblogged this from animalswholoveanimals and added:
my favourite animal reproduction facts.
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animalswholoveanimals posted this
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