If current trends continue, we could be missing out on an hour of sleep a week by the end of the century.

The parasites were also present in dog poo found at the site, suggesting that prehistoric humans fed leftovers to their pet pups.

The Event Horizon Telescope is back with another stunning image of a supermassive black hole, this time of the one within our very own Galaxy.

The artificial corals mimic the natural complexity of a reef and aim to attract marine organism to support the regrowth.