“While the human penis functions primarily to transfer sperm, our result suggests its unusual large size evolved as a sexual ...

"Size matters" sounds like a tabloid cliché, but for evolutionary biologists the size of the human penis is truly a puzzle.

Human penis size indicates male attractiveness and fighting ability, with a larger size more attractive to women and more ...

The human body is a machine whose many parts – from the microscopic details of our cells to our limbs, eyes, liver and brain – have been assembled in fits and starts over the four billion years of our ...

The human body is a machine whose many parts—from the microscopic details of our cells to our limbs, eyes, liver and brain—have been assembled in fits and starts over the 4 billion years of our ...