Ongoing research elaborates the incredible lengths male animals (and men) will go to ensure that sperm meets egg

Artificial wombs, lifelong fertility -- it seems the stuff of dystopian sci-fi, but an author says it will happen

Don't blame mom: A growing corpus of research says it takes two healthy parents to tango

Competition between brood parasites and their hosts drives multi-color egg adaptations

Experts explore how a contraceptive for men could impact relationships, condom use, infidelity and more

Researchers say it's possible, but lawmakers must pave the way.

The game has taken mobile users by storm—but it has some limits to overcome to keep its competitive edge

Hong Kong chickens are suffocated to death because of a flu virus. American chicks are ground up because they are the wrong sex. Animals are put to death in all sorts of gruesome ways. But if we stopped eating meat and poultry, such gruesome slaughter would be avoided, and we'd be healthier for it.

Two new books enter the dangerous territory where cold facts meet hot tempers.

Study shows female brine shrimp survive longer when they don't mate with "males from the future or the past"

Parthenogenesis is a survival strategy that doesn't work

A menopause delay switch? Scientists manipulated key genes in mice to extend their period of fertility

What do we want from a donor? An expert explains the hidden dynamics of the fertility industry

A scientific milestone lays out the path ahead for producing genetic offspring of same-sex mammals

New research reveals that insects like to cuddle, too