Comment on oxygen replenished via endocardial tubes
Confused_Emus@lemmy.dbzer0.com 5 days ago
Now I’m curious if it used to be normally “unfolded” somewhere in our evolutionary past.
Comment on oxygen replenished via endocardial tubes
Confused_Emus@lemmy.dbzer0.com 5 days ago
Now I’m curious if it used to be normally “unfolded” somewhere in our evolutionary past.
ArchmageAzor@lemmy.world 5 days ago
Simpler animals like insects and molluscs can have tube-like hearts, so it’s possible.