Today, Neil DeGrasse Tyson tweeted this…

It seemed … not quite right. And we can prove it.



The antechinus, for example, is a marsupial that lives in Australia. Its males have so much sex that they bleed internally and go blind and their hair falls out and they die. Photo: Gary Cranitch/Queensland Museum



House cats—cute, cuddly, sometimes grumpy—have barbed penises that scrape up the ladies’ insides something fierce. Yup: penile spines. Photo: Kelly Shimoda


Praying Mantis

Female praying mantises (and a lot of female spiders) eat the males after mating. Listen, a lot of people get the munchies after sex. Photo: Klaas van Haeringen/Buiten-beeld/Getty Images



Female duck vaginas corkscrew in the opposite direction of male ducks’ penises. This is apparently evolution’s way of keeping the males out, because male ducks are assholes. Photo: Claude Robidoux/Getty Images



Anglerfish males fuse their faces to females’ bodies and they live the rest of their lives like that, stuck together while they release sperm and eggs at the same time. Romantic? Perhaps. Painful? Hard to tell. Comfortable? No. We’re going with no. Photo: David Shale/NOAA


Bed bugs

Bed bugs are traumatic inseminators. Males pierce the females’ abdomens with their sharp penises and inseminate them. Photo: Kamil Bialous



Everything’s not always awesome down there, you guys. Human sex can be painful, for both parties, and it’s a treatable disorder called dyspareunia. Yet somehow, we’re still here. Photo: Clayton Cubitt

Excerpt from:  

Hey, Neil deGrasse Tyson, These Animals Have Sex That Hurts