That's one way to do it:

"Africa's Giant Pouched Rats Simply Seal Up Their Vaginas When They Don't Want Kids

(...) Around a meter (3 feet) long from whiskers to tail-tip, the animals are more closely related to a genus of Madagascan rodents called antsangy, than true rats. Their life-span is also a relatively lengthy eight years, with some females holding off on breeding until they're four years old. Some will stop breeding again after a successful pregnancy.

Baffled, researchers took a closer look and found to everyone's astonishment many of the female rats hadn't merely sworn off more kids, they'd closed shop, sealing off their vaginas."

#science #biology #AnimalPhysiology #reproduction #BirthControl

🔗: https://www.sciencealert.com/africas-giant-pouched-rats-simply-seal-up-their-vaginas-when-they-dont-want-kids

Why Pronghorns are the coolest, a thread.
#science #biology #AnimalPhysiology #pronghorn