JoshuaSlowpoke777@lemmy.world to No Stupid Questions@lemmy.ca · 9 months agoApparently some humans are born with two spleens. What evolutionary pressures likely created the trait, and what future pressures could drive second spleens to become more common?message-squaremessage-square6fedilinkarrow-up113arrow-down10
arrow-up113arrow-down1message-squareApparently some humans are born with two spleens. What evolutionary pressures likely created the trait, and what future pressures could drive second spleens to become more common?JoshuaSlowpoke777@lemmy.world to No Stupid Questions@lemmy.ca · 9 months agomessage-square6fedilink
minus-square38fhh2f8th5819c7@lemm.eelinkfedilinkarrow-up1·9 months agoAll humans start with 2 spleens, they fuse in utero. When this process fails to complete you end up with an accessory spleen or “splenunculus”. There is no functional defecit, you can live happily with an accessory spleen.
All humans start with 2 spleens, they fuse in utero. When this process fails to complete you end up with an accessory spleen or “splenunculus”. There is no functional defecit, you can live happily with an accessory spleen.