An upside-down jellyfish drifts in a shallow lagoon, rhythmically contracting its translucent bell. By night that beat drops from roughly 36 pulses a minute to nearer 30, and the animal slips into a ...

The world's first human womb transplant has taken place on a 26-year-old woman in Saudi Arabia, it has been revealed. The transplanted human uterus produce ...

Why do we sometimes keep eating even when we're full and other times turn down food completely? Why do we crave salty things at certain times, and sweets at other times?

Termites did not evolve complex societies by adding new genetic features. Instead, scientists found that they became more ...