Kid News This Week: Ocean voices, ancient cave art, stolen Van Gogh and lying down competition

In kid news this week… We hear the "voices of the ocean" and sounds of the sea (it's a noisy place!) and find out what they mean, also ancient cave art is discovered in Spain, a stolen Van Gogh is returned in a bloodied pillowcase in the Netherlands and the Laziest Citizen Competition nears a month – of participants just lying down – in Montenegro. All that and more in the coolest pool of news and information!