Hey, Neil deGrasse Tyson, These Animals Have Sex That Hurts
Some people seem to think that animal sex wouldn't exist if it hurt. Those people are wrong.

Credit: Gary Cranitch/Queensland MuseumGary Cranitch/Queensland Museum

Today, Neil DeGrasse Tyson tweeted this...
It seemed … not quite right. And we can prove it.
Gary Cranitch/Queensland MuseumAntechinus
The antechinus, for example, is a marsupial that lives in Australia. Its males [have so much sex](http://slim-weight.info/2014/05/absurd-creature-of-the-week-this-marsupial-has-marathon-sex-until-it-goes-blind-and-drops-dead/) that they bleed internally and go blind and their hair falls out and they die. Photo: Gary Cranitch/Queensland Museum
Kelly ShimodaCats
House cats—cute, cuddly, sometimes grumpy—have [barbed penises](http://onlinelibrary.wiley.com/doi/10.1002/ar.1091570111/abstract) that scrape up the ladies’ insides something fierce. Yup: penile spines. Photo: Kelly Shimoda
Klaas van Haeringen/ Buiten-beeld/Getty ImagesPraying Mantis
Female [praying mantises](http://slim-weight.info/2015/01/animal-cannibalism/) (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
Claude Robidoux/Getty ImagesDucks
Female duck vaginas [corkscrew in the opposite direction](http://slim-weight.info/2009/12/muscovy-duck-sex/) 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
David ShaleAnglerfish
[Anglerfish males](http://slim-weight.info/2013/11/absurd-creature-of-the-week-anglerfish/) 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
Kamil BialousBed bugs
Bed bugs are [traumatic inseminators](http://slim-weight.info/2015/02/50-shades-wrong-disturbing-insect-sex/). Males pierce the females' abdomens with their sharp penises and inseminate them. Photo: Kamil Bialous
Clayton CubittPeople
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
32 Gifts Teens May Actually Like (According to Our Kids)
Teenagers can be scary and impossible to shop for. From gaming chairs to cologne to slippers, these adolescent-approved gifts can help.
The Best Running Socks for Mile-Conquering Comfort
From long-lasting everyday staples to toe-friendly blister busters, here are the best WIRED-tested socks to tackle every run.
Battle of the Branches: Best Artificial Christmas Trees 2025
WIRED brought 10 of the most popular artificial Christmas trees into a studio, had volunteers assemble them, then got three interior designers to pick the best through blind judging.
Best Gifts for Women Who’ve Checked Out of Planet Earth
She’s seen enough. She’s had enough. She can’t fly through a portal to a different reality, but these gifts will help her transcend this world.
33 Best Gifts for Cat Lovers
Want to surprise your feline friend or find the perfect gift for a cat lover? WIRED has you covered.
The Best Base Layers for Every Adventure
Whether you’re layering up for winter cold or looking for an ultralight summer system, we’ve tested and found the best base layers for all your outdoor adventures.
The Best Noise-Canceling Headphones to Escape Reality
Tune out (or rock out) with our favorite over-ears and earbuds.
Spore Yourself Rotten With WIRED’s Mushroom Gift Guide
We’re talking mushroom gummies, shiitake-infused cooking oil, and even an automated monotub for serious spore enthusiasts.
Go Pro With the Best Camera Gear for Your Phone
From mobile lenses to wireless mics, here’s everything you need for your portable, pro-grade photo or video studio.
19 Adventurous Gifts for Hikers, Backpackers, and Outdoorsy People
Let them pick out their own hiking boots. Instead, try gifting a useful blade or a nature journal to delight your outdoorsy friend.
The Best Travel Toiletry Bags for Every Trip
Our team evaluated a ton of toiletry bags to find the best storage, organization, and design options for all your essentials.
Smart Gifts for Travelers Who Live Out of a Suitcase
For the frequent flier who treats the Delta Sky Club like their second home.