Family Obligations: Crash Course Philosophy #43

For most of you, your parents brought you into this world. They also fed you, and changed your diapers, and wiped your tears. They raised you. Yet, according to contemporary American philosopher Jane English, once you’re grown, you don’t owe your parents anything. Not a single thing. Now, this might sound a little selfish. A […]

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 […]

Eugenics and Francis Galton: Crash Course History of Science #23

Most famous scientists picked a thing. But a few polymaths, like Aristotle and Ibn Sina, picked everything. Francis Galton, one of the most important thinkers in the generation after Darwin, fell into column B. Hardcore. Galton was a co-founder of a range of scientific disciplines, including meteorology, psychology, forensics, and above all statistics. He was […]

Why Human Ancestry Matters: Crash Course Big History 205

Hi there, I’m Emily Graslie and welcome to Crash Course Big History. Today, we’ll be discussing human ancestry and genealogy – important for understanding where we come from and how we relate to each other today. Looking at the modern science on the topic, the evidence points toward conclusions that unify humanity into a closely […]

Human Evolution: Crash Course Big History #6

Hi, I’m John Green. Welcome to Crash Course Big History Project where today we’re going to talk about the Planet of the Apes films. – What’s that? Apparently, those were not documentaries. But there was an evolutionary process that saw primates move out of East Africa and transform the earth into an actual planet of […]

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 […]

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, […]

Émile Durkheim on Suicide & Society: Crash Course Sociology #5

So, the fact that we have society at all is kind of amazing. Think about it: People with different interests, different amounts of money, members of different subcultures, races, and sexual orientations, somehow all manage to hold together, in this thing we call society. A thing that, at least kind of, works. But it doesn’t […]

The Humans That Lived Before Us

For about a million years in the early Pleistocene Epoch — from about 2.4 million to 1.4 million years ago — it was a really exciting time to be a hominin. Hominins, you’ll recall, are the group of human ancestors that are more closely related to us than to chimps and bonobos. During this million-year […]