What has the world's deadliest venom?

In this episode of Stuff You Should Know, Josh and Chuck dive into the fascinating and terrifying world of venomous creatures, starting with scientists who are trying to use scorpion venom to cure brain cancer. They explore what makes an animal venomous versus poisonous, reveal the surprising identity of the most deadly venomous creature on Earth (hint: it's found off the coast of Australia), and discuss how researchers measure venom potency using the controversial LD50 method. Along the way, they cover everything from box jellyfish and cone snails to anti-venom production and why some Australian surfers wear pantyhose for protection.