A new study on Indo-Pacific bottle-nosed dolphins reveals that pods might rub themselves on coral as a way to keep their skin healthy.

Today, we’re hearing from an explorer's explorer, Victor Vescovo. His Five Deeps Expedition made him the first person to reach the deepest point of the Atlantic, Southern Ocean, and set a depth record in the Mariana Trench at 35,853 ft. He was the first person to reach the Mollow Deep in the Arctic Ocean, and thus has been to the 1st, 2nd, and 3rd deepest points in the ocean.

Sure, the Sun is big. It’s over a hundred times wider than the Earth and weighs over 330,000 times the mass of our planet.It’s peanuts.

Today, you’ll learn about how a drug that helps in human organ transplants might be able to extend the lives of man’s best friend, the airline industry's potential but difficult switch to hydrogen fuel, and how a high school student is transforming prosthetics with brain waves.

Jupiter is the OG best friend in the solar system. It finds all the tiny little comets and asteroids heading for the vulnerable inner planets and takes one for the team, chewing up the dangerous rocks in its thick atmosphere. It happened again just recently, and this time an amateur astronomer caught it in the act.

Learn about the link between music download trends and epidemics; and how losing jungles contributes to climate change.

Learn about crowdsourced fact checking; why humans and monkeys choke under pressure; and a mantis shrimp punching robot.

Learn about introverts’ and extroverts’ pandemic response; astronaut farts; and why violet and purple are different.

Learn from some of our favorite expert guests about yoga, volcanoes, meditation, and more on this special episode of the Curiosity Podcast. You'll hear from accomplished authors and academics from past episodes, in addition to a special guest you've never heard before on the show. Plus, hear about the past, present, and future of the Curiosity Podcast.

Don't be fooled by its fancy renovations—this hotel has a checkered history. Stream HORROR AT THE CECIL HOTEL only on discovery+.

Learn about the Luhn algorithm (the genius math behind credit card numbers) and how parents’ brains synchronize when they’re together. Then, play along at home and test your podcast knowledge with this month’s Curiosity Challenge trivia game.

Learn about how researchers discovered that your lungs actually make blood; how you can tell the temperature from cricket chirps; and a strategy for maximizing your focus and achieving your goals that comes from billionaire business magnate Warren Buffett.

Learn about why you have tiny rocks in your ears; why the self-congruity effect of music says you may prefer music by artists who have a similar personality to you; and how chemotherapy began as a chemical weapon.

Learn about how stress during pregnancy can affect a newborn’s sex; skipping stone physics in space; and overspending.

Infectious disease doctor and researcher Dr. Lawrence Purpura discusses herd immunity and the coronavirus pandemic. Then, learn about how psilocybin therapy may be able to treat depression, and why credit card chips are safer than magnetic strips.