Humans don’t have a defined mating season like deer or wolves. Here’s how evolution blended biology, culture and social life into year-round intimacy.

New humpback whale study shows older male whales were more likely to become fathers and younger males were less likely to do so.

When ancient humans interbred, new research shows that the pairings were predominantly male Neanderthals and female Homo ...

A woman’s gum health can influence her ability to get pregnant because poor gums may cause inflammation that affects the ...

This is where memory is essential to identity formation. The self is assembled not from everything that has happened to us, but from what the brain has chosen to preserve and retrieve.

Growing tissues can crack, break, and dissociate to form structures that can later withstand immense forces.

Positions that offer deep penetration can also feel more primal and raw, says Kerner, which can be arousing for both partners. It makes sense that the mating press position would have this animalistic ...

Should you ever find yourself playing a trivia game on the topic of moths and butterflies, here are a few facts that might ...

Scientists have built a massive cellular atlas showing how aging reshapes the body across 21 organs. Studying nearly 7 million cells, they found that aging starts earlier than expected and unfolds in ...

Scientists have uncovered a surprising new way that giant embryonic cells divide—without relying on the classic “purse-string” ring long thought essential for splitting a cell in two. Studying ...

Researchers summarize key insights from the world’s first comprehensive investigation into how a pandemic started.