An artist has hooked up mics and headphones to trees.
Have you ever wondered what an oak tree would sound like?
An artist has hooked up mics and headphones to trees, so people can hear the inner bubbling of water as it surges from their roots to their leaves.
Artist Alex Metcalf, says his 'Tree Listening Project' in the UK aims to highlight the sounds that different trees make and hopes it will help people better appreciate the natural world.