fossilesque@lemmy.dbzer0.comM to Science Memes@mander.xyzEnglish · 7 days agopee was stored in the ballslemmy.dbzer0.comexternal-linkmessage-square70fedilinkarrow-up1299arrow-down110file-text
arrow-up1289arrow-down1external-linkpee was stored in the ballslemmy.dbzer0.comfossilesque@lemmy.dbzer0.comM to Science Memes@mander.xyzEnglish · 7 days agomessage-square70fedilinkfile-text
https://www.newscientist.com/article/2473713-the-anus-may-have-evolved-from-a-hole-originally-used-to-release-sperm/
minus-squareChaoticNeutralCzech@feddit.orglinkfedilinkEnglisharrow-up9·6 days agoYeah, the first thing the embryo of vertebrates folds into is a torus whose hole will become the digestive system. Reproductive organs come way later.
minus-squareConfused_Emus@lemmy.dbzer0.comlinkfedilinkEnglisharrow-up14·6 days agoSo very early in our development we’re just an asshole. Some people apparently never make it past this stage.
minus-squareAnIndefiniteArticle@sh.itjust.workslinkfedilinkEnglisharrow-up3·6 days agoNot to mention that animals with reproductive systems but that reproduced asexually evolved long before sperm. e.g. earthworms
Yeah, the first thing the embryo of vertebrates folds into is a torus whose hole will become the digestive system. Reproductive organs come way later.
So very early in our development we’re just an asshole. Some people apparently never make it past this stage.
Not to mention that animals with reproductive systems but that reproduced asexually evolved long before sperm.
e.g. earthworms