giz asks
What’s the Horniest Animal?

Anyone who’s ever watched a nature documentary knows that the animal kingdom is rife with – is, in some sense, composed entirely of – sex fiends and perverts. They’ve got all kinds of genitalia out there in nature, and these are put to frequent, energetic use. Still, some species are surely less sex-crazed than others – fonder, for instance, of doing adorable little tricks, or making a mess of their prey’s intestines. Conversely, some species must dwell in a realm of intense, pan-sensory horniness unimaginable to your average sex-consumed human, and it’s that bunch we’re interested in for this week’s Giz Asks. Below, animal experts weigh in on what animal might be the horniest. Read More >>

science
Stick Bugs Could Be Thriving by Getting Pooped Out of Birds

If you wanna thrive on this planet, you have to figure out a way to be fruitful and multiply. If you’re a stick bug, that could mean getting pooped out of a bird. Read More >>

science
These Asexual Animals Don’t Need Love

Does all the stress of finding a partner get you down? Do you ever wish you could just start a family of your own, with kids that looked just like you, but without all of the trouble of finding another individual to mix sex cells with? Read More >>

science
This Star Wars-Inspired Simulation of Human Reproduction Is Awesome

The microscopic processes involved in human fertilization are a difficult thing to convey visually, but a group of scientists, using Star Wars as their inspiration, have managed to do just that, creating a highly entertaining and informative video—while accidentally stumbling upon a new scientific discovery in the process. Read More >>

science
Sperm Counts Have Plummeted Among Western Men, Scientists Confirm

Something weird is going on with human sperm production. For decades, scientists have warned that sperm counts are dropping among Western men, but no one has really been able to prove it. In what is now the largest and most comprehensive study of its kind, scientists have presented compelling evidence in support of this rather alarming assertion, showing that sperm counts have dropped more than 50 percent in just four decades. Read More >>

animals
This Video of Cuttlefish Trying to Bang Will Scar You For Life

When you hear “cuttlefish,” naturally, you think “cuddly,” right? Turns out these charming little cephalopods can—and will—throw down if they have to, especially when it involves mating. In a newly-released video, two male cuttlefish suitors duke it out for a lady, and there’s nothing that can prepare you for the violent ending. Read More >>

animals
Watching a Male Seahorse Birth 2,000 Babies is Horrifying and Awesome at the Same Time

Childbirth is an enormous responsibility that nearly always falls on females—but a few brave males shoulder the burden too. And as a female who has vaguely contemplated the possibility of having children, I don’t envy them for a second. Read More >>

animals
Spider Bondage Exists and it’s as Horrible as it Sounds

Spiders are notorious for their bizarre and often violent mating practices. New research shows that, in order to avoid getting eaten during sex, male nursery spiders will tie up their partners with silken threads. And yes, it’s as gruesome as you might imagine. Read More >>

science
The First Uterus Transplant in the US Has Failed

A revolutionary procedure that gave hope to infertile American women was ultimately not successful. The first uterus to be transplanted in the US has been removed after two weeks, even after the patient appeared at a press conference Monday saying she hoped to get pregnant one day. Read More >>

science
The Reason Why Identical Triplets Are So Rare Will Probably Surprise You

A set of identical triplets headed home from a Texan hospital yesterday were being called “one in a million” multiples by doctors. The reason we don’t have more identical triplets running around is very simple — and it probably goes against what you’ve heard about twins (or triplets, for that matter). Read More >>

science
A Man is His Son’s Uncle, Thanks to a Vanished Twin

Last week at Buzzfeed News, Dan Vergano described the surprising results of a paternity test–the first known case of a man fathering the son of a brother he didn’t know existed. It’s an example of a rare genetic condition known as chimerism. Read More >>

science
Older Ovaries, Not Older Eggs, May Reduce Fertility With Ageing

Women who are over 40 have a notoriously hard time getting pregnant by in-vitro fertilisation (IVF), and it’s long been assumed that their problem stems from “old eggs”. But a preprint now available online at the Journal of Endocrinology suggests that the real problem might be the ageing of the cells that surround the eggs. Read More >>

space
Why Russia Was Studying Space Lizard Sex in the First Place

For a brief moment, the internet was captivated by the thought of geckos copulating madly in a lost Russian satellite. Russia has since regained control of its lizard-sex orbiter, but the whole episode has gifted us an opportunity to consider a topic of extremely legitimate scientific interest. Namely, lizard sex in space. Read More >>

space
Sex in Space Could Kill You

In a new study that's sure to make everyone's world just a little darker, scientists have discovered that sex in space could lead to severe health problems and life-threatening illnesses—brain disease and cancer included. Read More >>

science
Drinking, Drugs and Diet Don’t Harm Your Sperm — But Tight Pants Do

Most medical guidelines suggest that sperm count can be seriously set back by all manner of enjoyable activities: drinking, smoking, taking recreational drugs and even eating unhealthy food. A new study, however, suggests there's only one thing you really need avoid: tight pants. Read More >>