Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient world slept only 6.5 hours a night.
German Chancellor Olaf Scholz and Danish Prime Minister Mette Frederiksen met on Tuesday in a show of unity after US President Donald Trump again stressed his designs on Greenland.
Male polar bears can weigh up to 700 kilograms (1,540 pounds) and reach lengths of over three metres (10 feet). This makes them the largest land predators in the world, outmatching even grizzly bears.