How to Get Involved in Your Local Community

Hi! I’m Rachel Calderon Navarro and this is How to Adult. One of the coolest parts of being an adult is that you have agency. If you don’t like something, you can work to change it. And if you care about something, you can help make it even better. By getting involved in your community, […]

Stages of Family Life: Crash Course Sociology #38

How does a family become a family? Well, when two people love each other very much… I’m joking, I’m joking – kind of. As we discussed last week, American families often form around marriages. So, romantic relationships can be a first step in the stages of family life. It might seem strange to think of […]

Community Ecology II: Predators – Crash Course Ecology #5

Of all the ways that species interact on this planet, maybe the one that fascinates us the most is predation, and why not? It’s hard not to be captivated by, say, an Alaska Brown Bear, one of North America’s apex predators, even though they get much of their nutrition from nuts and bugs and berries. […]

When Hobbits Were Real

We’d like to thank Raycon wireless earphones for supporting PBS. In October 2004, our understanding of the human family tree was turned upside down. That’s when anthropologists reported that they’d discovered the bones of a tiny, unknown hominin, on the Indonesian island of Flores. This little creature stood only about a meter tall and had […]

Race & Ethnicity: Crash Course Sociology #34

How do you define race? If you had to describe why you think you’re a member of one race and someone else was a member of a different one, you’d probably focus on appearances – your skin, your hair, maybe even the structures of your bodies and faces. But most of the time, those physical […]

Theories About Family & Marriage: Crash Course Sociology #37

You’ve probably heard people say that blood is thicker than water. That’s supposed to mean that family relationships – blood – are stronger than all other relationships. Which I guess are the water? But what do you think? Is that true? Can friends be considered your family? Or do you only think of your parents […]

How the Squid Lost Its Shell

500 million years ago, back in the Cambrian Period, a pioneering little mollusk floated up off the ocean floor. It had developed a way to use its defensive shell for a whole new purpose — buoyancy. It turned out that by filling its shell with gas, this mollusk could literally reach new heights, gaining a […]

Education In Society: Crash Course Sociology #40

The average American spends 13 and a half years of their life in school. And that’s not counting the amount of time that you spend watching Crash Course. Getting a bachelor’s degree means spending upwards of 17 years as a student. And advanced degrees like medical degrees or PhDs can tack on another 4 to […]

The Norse Pantheon: Crash Course World Mythology #10

Hey there, I’m Mike Rugnetta and this is Crashcourse Mythology. Today we’re going to try to do justice to the Norse pantheon–a very scary wolf, an amazing tree, a rainbow bridge, some frost giants, and way more than what I learned from reading Thor comics. No, not you, Thoth. Your th is a plosive. We’re […]

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 […]