Forrest Galante, host of “Extinct or Alive” on Animal Planet, explains why sharks are so important to their ecosystems. You’ll also learn about giant prehistoric sea scorpions called Eurypterids who used to rule the sea and how cats affect online dating.

Learn about why meteorites probably aren’t hot when they land; why babies hardly ever blink; and why couples have such a hard time breaking up.

Learn about a simple way to explain quantum physics, with a special guest, astrophysicisist George Greenstein. You’ll also learn about how to survive falling without a parachute, and how to avoid “speed-dating mistakes” when adopting a dog.

What would you do if you knew which moves were proven to be the sexiest?

Learn about why bats are the source of so many deadly virus outbreaks; and the surprisingly strong influence older siblings can have on their brothers and sisters — just in time for Siblings Day. Then, test your knowledge from this podcast with a Curiosity Challenge trivia game.

To help you celebrate Earth Day, Bill Nye discusses some unexpected ways we can save our environment, including raising the standard of living for women and girls. Then, you’ll learn about why spicy solar panels capture more sunlight — with a little help from capsaicin.

Beth Pratt, leader of the Save LA Cougars campaign, explains how wildlife crossings work and the unique engineering behind the Liberty Canyon Wildlife Crossing. Plus: learn how doing one creative thing every day can boost your happiness.

Learn about the surprising memory skills of infants; why that whole “phosphine on Venus” discovery may not be as exciting as we thought; and how medical science answered Molyneux's problem, a 300-year-old philosophy question.

Learn how your voice changes when you talk to someone attractive; how the cinchona cure for malaria turned into a popular cocktail; and how to figure out whether your work is a job, a career, or a calling.

Author Jen Sincero explains why it’s important to form and maintain habits. You’ll also learn about why phantom limb sensations are way more common than you think; and how the Large Magellanic Cloud, or LMC, is warping the Milky Way galaxy

Learn about why things taste bad after you brush your teeth; a new discovery about how fast the Earth formed that may mean good things about life in the universe; and why women may experience more pain than men.

Learn what scientists say was the most influential film of all time; the special way riding a bike is stored in your memory; and the truth behind mistletoe, a Christmas tradition that’s actually a poisonous parasite.

Learn why helping others feels like helping ourselves, how wild animals eat healthy, and how the Sahara feeds the Amazon.

Learn about how some male cuttlefish “cross-dress” to woo the ladies. You’ll also learn how to persuade people in a world where facts don’t seem to matter, with help from author Lee Hartley Carter.

Learn about how to choose the right cooking method for different cuts of meat; how to figure out the perfect temperature for your meat; pro tips for searing and tempering; and the best way to capture that juicy flavor, including the science of what’s actually happening to those juices while you’re cooking.