Think of the last time you were in the presence of something really old. Was it a cherished possession of one of your family members? Was it a used book or antique that spoke to you from a dusty hole-in-the-wall shop?
In a cave in France archaeologists have found some of the oldest human constructions ever discovered —but no one knows what they are. Nature Video takes a look.This video was reproduced with permission and was first published on May 25, 2016. It is a Nature Video production.
Something ghostly and hungry flies the skies of northern Australia. Its massive white wings stand out against the darkness as it circles, searching for prey.