Why Are We The Only Humans Left?

Look around and you’ll meet some pretty smart animals, but there’s no species quite like us. But that wasn’t always true. As recently as 50,000 years ago we walked the planet along with at least three other human species. Denisovans and real-life Hobbits Homo floresiensis didn’t leave much behind to know them by, but Neanderthals […]

How Sloths Went From the Seas to the Trees

8 million years ago, off the coast of Peru, a large mammal used its powerful claws to pull itself along the ocean floor, holding fast against the waves as it foraged for seagrass. 5 million years ago, a similar creature was burrowing underground in Argentina, digging burrows so massive that you could walk right into […]

CRISPR and the Future of Human Evolution

[MUSIC] Is there something you’d change about yourself? Not just your hairstyle, but down at the genetic level? For the first time in human history, the ability to build and select genetic traits is within reach. Problem is, no one’s played this game before. [music] Mutation and selection. These two principles have molded basically all […]

The Missing Link That Wasn’t

It’s 1912, and an amateur archaeologist named Charles Dawson came forward with a discovery that almost changed our understanding of human evolution. Almost. Dawson’s find was some unusual human-like skull fragments, and he showed them to the Keeper of Geology at the British Museum, Sir Arthur Smith Woodward. He explained that the fragments were given […]

Where Did Humans Come From?

Picture human ancestry like a single chain of species: primitive to perfect, with a progression of all the apey-human things in between. Now take that picture, crumple it up and light it on fire. That’s not how it happened. Now we know we’re just one of more than two dozen human species that’ve walked the […]

She isn’t African enough?! DNA Ancestry tests feat. It’s Okay To Be Smart

Your Place in the Primate Family Tree

Hey there, Kallie here to remind you that Eons has some cool stickers for sale over at DFTBA.com, link in the description. Thanks for watching and, on with the show. Would you recognize your earliest primate ancestor if you met it face to face? What if it didn’t look like a monkey, or an ape, […]

The Sex Lives of Christmas Trees | Deep Look

Before there was this… and this.. and this and this and this… …there was this. The humble pine cone. It’s more than a Christmas decoration. It’s an ancient form of tree sex. This is a female pine cone This one is male. Most cone-bearing trees — they’re called conifers — produce both kinds. And each […]

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 […]

Are We All Related?

This is you. And these are your ancestors, a huge pyramid stretching into the past and balancing right on your head. How many ancestors do you have? Well, you have two parents. Four grandparents. And eight great-grandparents. Four generations back, your direct ancestors total 30. If we continue down this line, doubling every step, just […]