Vagina Museum on Nostr: Before you start getting excited about artificial uteruses meaning you'll never get ...

Before you start getting excited about artificial uteruses meaning you'll never get pregnant again, we have some bad news: this approach won't work with humans. Or mammals. Or even most other types of shark.

Lantern shark embryos helpfully have a yolk sac attached to them, which provides nutrients during gestation. Other sharks use different strategies for nourishing embryos, such as placentas, fluids secreted by uterine walls, or the embryos cannibalising each other in utero.