Sex cells: egg and sperm

What the scientists are saying… Human sex ...

Bones create an internal armature that on some animals, such as an elephant or cow, appear quite stiff and rigid, but on others, such as the cheetah, they are gracile, loose and flexible, allowing for

The cloning of animals – pets, farm animals, racehorses – is today done routinely on an industrial scale. Bianca Bosker investigates

What the scientists are saying… Babies with ...

PORTRAIT BY VANESSA DELL; YOUGOV/SEX MATTERS A decade ...

Efforts to prohibit abortion down the ages