There Was No First Human

[MUSIC] This is me. I’m a human. These are my parents, they’re clearly humans too. My grandfather, human. My great-grandfather and great-great-grandfather? Humans without a doubt. But my grandfather 185 million generations removed? Not a human. He was a fish. [MUSIC] Imagine you could take a picture of every ancestor down the line and put […]

What If There Were No Sharks?

[SCARY MUSIC] Why are sharks so scary?! Bloodthirsty beasts just waiting out there in the waves to feast on human flesh. If only we could get rid of these guys our vacations would be so much safer, nothing to worry about while we’re surfing and frolicking out there in the ocean. Except that’s not the […]

How Do Sharks and Rays Use Electricity to Find Hidden Prey? | Deep Look

We live in a world full of electric fields. Animals, plants — even the earth itself — creates them. But only a handful of creatures can actually sense them. Sharks — also rays and skates… a whole group, animals called elasmobranchs — can actually detect electricity Maybe it’s like feeling the presence of someone hiding […]

Do Fish Pee?

Hey smart people, Joe here. Have you ever heard the phrase “to drink like a fish?” Well, unless you’re a ocean dwelling species, that probably means staying sober. Because freshwater fish don’t drink! Saltwater fish on the other hand? They’re constantly drinking. But if some fish drink all the time and other fish don’t drink […]

A World Without Microbes: An Apocalyptic Thought Experiment | I Contain Multitudes

[MUSIC PLAYING] ED YONG: Imagine wiping out every microbe on Earth, every bacteria, every germ. I’ve done that. That is Professor Jack Gilbert from the University of Chicago. Catastrophic ideas are exciting. Everyone loves a disaster movie. ED: This summer– JACK GILBERT: As a microbe guy, you’ll like this movie. ED: In a world without […]

Your Microbiome: The Invisible Creatures That Keep You Alive!

[SHOW OPENING MUSIC] This episode was sponsored by Audible. [OPENING SHOW MUSIC] Teleport every one of your cells into the next room, and you’d leave a strange shadow behind. A ghostly cloud of single-celled creatures that live on and inside your body. Your microbiome. Zoom in and we can see this cloud is made of […]

Will You Still Eat Raw Fish After Watching This Video?

Hey smart people, Joe here. What do poke, sushi and sashimi, and all these dishes have in common? They’re delicious. They’re made with raw fish. And they could all give you parasites. Yep. The ocean is a parasite playground. That warning about raw or undercooked fish at the bottom of every menu? It’s there for […]

Rise of the Superbugs

[MUSIC] In his book “Microcosm” Carl Zimmer says… ow! There’s an old saying about death by a thousand papercuts. But what if it just took one? That’s silly, right? I mean, even if this DID get infected, we’ve got antibiotics to clean us up, it’s easy as aspirin. But that all might be about to […]