Northeastern University biologist Jonathan Tilly is certain he’s found egg-making stem cells in adult mice. If he’s right, it would refute decades-old work that showed female mammals finish making all their eggs before or shortly after birth. This might make it possible to grow new eggs inside the ovaries of older…

Menopause is one of the oddest features of human reproductive biology. Not the hot flashes or the forgetfulness, but the fact that older women lose the ability to have babies. Now researchers say that once it appeared, menopause may have had a ripple effect on human mating that helped create the human pair-bond.

Women who are over 40 have a notoriously hard time getting pregnant by in-vitro fertilization (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 aging of the cells that surround the…

Rejoice—and perhaps strap on your finest pair of “head for the hills” shoes—for scientists in China have finally produced what the rest of the world is terrified of: genetically-modified human embryos.

Indiana could be the first state to approve so-called "baby boxes" for abandoned newborns. The boxes look a bit like bread boxes, but are actually incubators meant to keep a newborn alive until it can be recovered. The boxes would also include an alarm that, once pressed, would alert first responders.

Last month, Pope Francis won the hearts and minds of many nonbelievers when he told reporters that having too many children is an irresponsible choice and that just because humans could breed like rabbits, they probably shouldn't. Now, after he's come under fire from Catholics around the world, he's changed his mind.

Congratulations, climate change deniers: You've won. In your quest to convince everyone that pollution and global warming doesn't exist you've hurt the only beings that can't hurt you back: The Coke-loving polar bears. You've hurt them right in their soft fuzzy dicks.

This likely won't surprise anybody who spent 2009 studiously ignoring the remaining balance on their ATM receipts, but the birth rate takes a noticeable hit during a recession. It's not simply that everybody puts childbearing off a couple of years — there are fewer babies born overall.

Today we have two new stories about your uterus: one that reveals that the sound of a ticking clock can actually speed up a woman's desire to have children, and another that reveals that young women who don't hear that clock in their heads (or who want to ignore it) are attending parties where they learn how to…

Here is your daily dose of futuristic medical news: The AP reports that after a decade of research, doctors in Sweden have successfully transplanted wombs from living donors into 9 women.

If more of the educational videos kids watched about a sperm's magical luge ride through the Fallopian tubes looked and sounded like this, you can bet someone would have made a "Journey of the Sperm" video game by now. It could still be a great game, but only if it were an ongoing MMO tournament that restarted every…

Yesterday, a proposed ban on abortions after 20 weeks of pregnancy was rejected by voters of Albuquerque. We're not talking a polite "it's not you, it's me" kind of rejection. We're talking changing your phone number-level rejection. We're talking Moving To Another City Without Telling You kind of rejection. Here's…

Sometimes, as a woman, I find myself adrift on a rudderless sea of indecision bereft of the opinions of others weighing in on my conduct. How should I dress? Should I be thin or what? Should I do anything to my face to make it look different? How should I conduct myself sexually? How should I age? When should I talk?…

Freaking out about teen girls having teen sex is as American an institution as packing one's overtaxed colon full of heavily processed meats during football games. But reality paints a different picture than the pearl-clutching; for the severalth year in a row, all that sex teens are supposedly having due to TWERKING…

What started as an investigation into developmental mouse biology has become a lot more than that. Biologist Katsuhiko Hayashi discovered a way to turn mouse skin cells into sperm and egg cells — and actually used these modified cells to create a living baby mouse. The question is, can it work in humans?