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Learn about the medical history of using leeches; potty training cows to help the environment; and the math behind eggs.

Learn about how people synchronize their heart rates when listening to a story; and vampire bats meeting up for meals.

Learn about misokinesia, an intense hatred of movements; why fear of blood makes you faint; and why your “ghost problem” might be caused by infrasound.

Learn what NASA astronaut Nicole Stott learned from her time in outer space. Plus: whistled languages around the world.

Learn about Harry Houdini and Arthur Conan Doyle’s amity; how to keep a jack-o’-lantern fresh; and declaring sovereignty.

Learn about “carbon neutral” policies; a new twist on the legend of Merlin; and the giraffe’s bizarre circulatory system.

Learn about the Space for Art Foundation; how screen time helped kids in lockdown; and mold vs. cleaning product safety.

Learn about how birds could help us predict natural disasters; fairy tales’ old origins; and how breaks and sprains heal.

Today, you’ll learn about some new, emerging data that is giving us surprising insight into human metabolism, how magic mushrooms are at the forefront of mental health treatment, and new jet technology that could get us anywhere in the world in under two hours.

Today, you’ll learn about the real science behind the five-second rule and why you may wanna reconsider eating that candy off the ground, why researchers are looking to our furry friends to build better early warning systems for natural disasters, and why the first animal to ever fly had a real issue keeping its lunch down.

Today, you’ll learn about a brilliant biotechnology that is turning mosquitoes against themselves, how babies use a slimy indicator to figure out who can be trusted, and the freaky things that would happen if we messed with the speed of light.

Today, you’ll learn about how researchers at MIT created an incredible new type of fabric that can save thousands of lives, how sleep scientists are explaining alien abductions, and how evolution is being sped up by human beings, causing ripple effects all over the place.

Today, you’ll learn about a super exciting space program, blasting off in a few months, that will take us back to the moon for the first time in 50 years, how the simple snap of your fingers actually involves some cool physics, and the chemistry behind the skunky stank of cannabis.

Today, you’ll learn about the cutest warriors helping humans on the front lines in the fight against climate change, an important new study that reveals how you can add years to your life, yes… years, and an ancient Mayan dental practice that added some flashy bling to their teeth.

Today, you’ll learn about how some cleaning products in your kitchen may be terrible for the environment even though they’re labeled “green,” hot blobs of iron playing games with Earth’s magnetic field, and how some far-out theories in physics predict there are infinite versions of you.