Join Calma Hawkes and Museum scientist Rupert Collins as they dive into the surprising science behind shark scales and what we can learn from our collections. Not seen the original video yet? Watch it here: https://www.youtube.com/watch?v=1H3XKFWJuxA 00:00 Intro 00:10 How do fish scratch themselves 1:34 What is a pelagic shark? 1:48 Why do fish scratch themselves on sharks? 2:30 How rough is shark skin? 3:26 Are rays related to sharks? 3:50 What do the denticles on sharks skin look like? ---------------- The Natural History Museum in London is home to more than 80 million objects, including meteorites, dinosaur bones and a giant squid. Our channel brings the Museum to you, from what goes on behind the scenes to surprising science and stories from our scientists. Subscribe to our channel for the latest films and live broadcasts about the natural world null Browse our shop: https://www.nhmshop.co.uk/ Website: http://www.nhm.ac.uk/ Twitter: http://twitter.com/NHM_London Facebook: http://fb.com/naturalhistorymuseum Instagram: http://instagram.com/natural_history_museum