For a long time, having children has been a young person’s game. Although ancient records are sparse, researchers estimate that, for most of human history, women most typically conceived their first ...

Elephants are pregnant for up to two years. Females of some fish species starve for weeks while holding dozens of eggs and hatchlings inside their mouths. And pregnant humans commonly endure months of ...

If you’ve ever joked that dating is killing you, science may have just backed you up. According to a massive new study, ...

The energy invested in animal reproduction is as much as 10 times greater than previously estimated when the metabolic load of bearing and caring for offspring is accounted for, according to a new ...

Cat Bohannon, author of Eve: How the Female Body Drove 200 Million Years of Human Evolution, says sexism is a massive set of rules all cultures have to control female reproduction. For Bohannon, sex ...