In reptiles, a simple temperature change can determine whether an egg develops into a male or female. This process is formally known as temperature-dependent sex determination (TSD), in which the sex ...

In a sweeping new map of the adult Drosophila melanogaster brain, researchers at the University of Oxford found that mature ...

Exercise is known to improve mood and memory, but the biological pathways connecting physical activity to brain function remain not entirely understood. In a new study published in Brain Medicine, ...

Historically, researchers have thought that autism affects mostly boys and men. But is that truly because they have the neurodevelopmental condition more often than women, or could something be going ...

We may receive a commission on purchases made from links. "Grey's Anatomy" Season 1, Episode 1, "A Hard Day's Night," features one of the most memorable opening scenes in medical drama history. It ...

Meredith Grey wearing a grey sweater - Disney/Anne Marie Fox We may receive a commission on purchases made from links. "Grey's Anatomy" Season 1, Episode 1, "A Hard Day's Night," features one of the ...

In the animal kingdom, doting dads are scarce: Research shows as few as 3 to 5 percent of mammalian fathers take an active role in parenting their offspring. But the reason why some seem more geared ...

Athletes may not have to observe pre-game abstinence before a big event after all. According to new research, sexual activity before intense exercise doesn't slow down an athlete's performance—in some ...

Using life-sized digital humans, researchers reveal how genital size subtly shapes attraction and rivalry, offering new insight into why human male anatomy is so evolutionarily distinctive. Image ...

Great ape male sexual organs, compared for size. Credit: Mark Maslin, The Cradle of Humanity/The Conversation. Evolution is generally a game of subtle shifts over countless generations. But sometimes, ...

Believe it or not, but ducks have a reputation for the unexpected: bizarre and intricate mating anatomy. According to scientific studies as well as viral posts, male ducks have evolved, now equipped ...