What Is the World's Longest-Living Vertebrate...

What happens when your immune system attacks the point of communication between your nerves and muscles? That's an autoimmune condition called myasthenia gravis, and it leads to muscle weakness that starts around the eyes and can progress to the face, neck, and limbs. Learn about ...  Show more

The asteroid belt between Mars and Jupiter is made up of sparse, tiny bodies of rock, ice, and metal that give us a window into our solar system's early days. Learn how Jupiter helped form the astroid belt and how asteroids might've given Earth its water (and life!) in today's ep ...  Show more

Could the legendary megalodon shark still be lurking in our oceans? PopSci's Purbita Saha dishes out the details. -- Follow us on Twitter: https://twitter.com/AskPopSciPod Hosted by Purbita Saha: https://twitter.com/hahabita Produced by Jess Boddy: https://twitter.com/JessicaBodd ...  Show more

Brian Cox and Robin Ince find out about the apex predators of the ocean. They are joined by physiological ecologist Lucy Hawkes, shark scientist Isla Hodgson and naturalist Steve Backshall. They learn about the surprising social behaviours of sharks, how they reproduce and exactl ...  Show more

In this episode, we’re asking sharks to say “aaaah”, and taking a close look at their chompers. We’ll see how shark teeth grow, and what those teeth can teach us about sharks of the past. We’ll also play a game of Jaws Jeopardy, and find out how sharks help keep the ocean helping ...  Show more

This is episode three of Swimming with Shadows: A Radiolab Week of Sharks.

Today, we take a trip across the world, from the south coast of Australia to … Wisconsin. Here, scientists are scouring shark blood to find one of nature’s hidden keys, a molecular superhero that ...