Surgeons were stunned when a routine brain biopsy revealed a living, 80mm predator thriving inside a patient’s frontal lobe.

The human genome is a rich, complex record of migration, encounters, and inheritance written over thousands of millennia.

Geneticists have a better understanding of how prehistoric pairings unfolded, with new research suggesting they were mostly between male Neanderthals and female humans.

Genetic evidence hints that there was a strong bias for male Neanderthals and female humans to mate, rather than any other combination ...