In Budapest, there is a fountain that looks like an open book. At regular intervals, a sheet of water curves to one side to give the illusion of a page being turned
Researchers have discovered that some populations of monkeys have entered their Stone Age.
They have started using stone tools to break nuts and shellfish, making them a further type of primates to do so after us.
Hippos can’t technically swim, and their high density prevents them from floating.
Consequently, they propel themselves using intermittent ground contact, like astronauts on a moon walk