Photoperiodism (Zoology 🦥)

Photoperiod is the change of day length over the seasons. Earth's rotation around its axis produces 24-hour changes in light and dark cycles on Earth. The length of the light and dark in each phase varies across the seasons due to the axial tilt of Earth. The photoperiod defines the length of the light. For example, in summer the lengt...

https://en.wikipedia.org/wiki/Photoperiodism

#Photoperiodism #Botany #Zoology #CircadianRhythm #PlantPhysiology #AnimalPhysiology

Photoperiodism (Zoology 🦥)

Photoperiod is the change of day length around the seasons. The rotation of the earth around its axis produces 24 hour changes in light and dark cycles on earth. The length of the light and dark in each phase varies across the seasons due to the tilt of the earth around its axis. The photoperiod defines the length of the light, for exa...

https://en.wikipedia.org/wiki/Photoperiodism

#Photoperiodism #Botany #Zoology #CircadianRhythm #PlantPhysiology #AnimalPhysiology

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