Lost world revealed by human, Neanderthal relics washed up on North Sea beaches | Science | AAAS: "During the last ice age, sea levels were 70 meters lower, and what is now the North Sea between Great Britain and the Netherlands was a rich lowland, home to modern humans, Neanderthals, and even earlier hominins. It all disappeared when glaciers melted and sea level rose about 8500 years ago."