In which John Green teaches you about population. So, how many people can reasonably live on the Earth? Thomas Malthus got it totally wrong in the 19th century, but for some reason, he keeps coming up when we talk about population. In...

In which John Green teaches you about the Little Ice Age. The Little Ice Age was a period of global cooling that occurred from the 13th to the 19th centuries. This cooling was likely caused by a number of factors, including unusual solar...

So... do plants need dirt? The truth might shock you. In this episode of Crash Course kids, Sabrina talks about how plants get energy and how that energy is transported around them. Also, she talks about dirt.

Have you ever wondered if there is anyone (or anything) else out there in the universe? Well, you're not alone. But what would alien life look like? And what would their food chains and food webs look like? In this episode of Crash...

All crocodilians look more or less the same today, but to survive two different mass extinctions, they've had to change a lot. Here's how they pulled it off.

Reading books can be fun, but there’s so much more to discover beneath the surface. In this episode of Crash Course Kids Literature, we’ll use our background knowledge and story evidence to make inferences about E.B. White’s novel,...

One of the largest challenges facing India: how to sustain food production for 1.4 billion people amid deteriorating soil quality, diminishing water supplies and climate change. For some, including hundreds of artificial intelligence...

According to the CDC, 1 in 5 American adults is living with obesity. In recent years, many have turned to weight loss drugs containing GLP-1, a hormone that slows digestion and helps with sustained weight loss. In a new book, former FDA...

Factory farming is the greatest moral crisis we ignore, says farm animal welfare champion Lewis Bollard. He exposes the truth behind the "all natural" labels on your groceries and shows how technology and public pressure can uncover the...

It's a hard nut to crack: in order to prevent food waste, we rely on plastic packaging and refrigeration, which harm the environment. What if we could turn to nature to address these challenges? Engineer and chemist Jenny Du shares how a...

What if ending food insecurity meant ditching charity models that haven’t been updated since the 1960s? Dion Dawson, TED Fellow and founder of Dion’s Chicago Dream, shares how he turned a spontaneous idea for giving back to his community...

Exhausted from carrying water up a hill to keep her small farm in Kenya thriving, Josephine Waweru received an unexpected call that offered a nearly unbelievable solution. She shares how one simple device allowed her crops (and her...

Sometimes feeding just one child can seem challenging. Not for entrepreneur Wawira Njiru, who’s gone from serving lunch to 25 children from a makeshift kitchen to establishing her nonprofit, Food4Education, as a cornerstone of Kenya’s...

In this video Paul Andersen describes the pros and cons of industrial agriculture including: monocropping, irrigation, and the use of pesticides, fertilizers, and GMOs.

In the far future we may have advanced propulsion technologies like matter-antimatter engines and compact fusion drives that allow humans to travel to other stars on timescales shorter than their own lives. But what if those technologies...

Our appetite for meat is one of the greatest environmental challenges we face. Join me on a mind-blowing visit to UPSIDE Foods, the world's most advanced cultivated meat production facility, as we ask whether cultivated meat can deliver...

It's a hard world out there, especially for a little guy. So what's a soft-bodied animal to do? Turns out that marine invertebrates basically figured out the best defense system of all time, and nobody's a better demonstration of that...

You may have heard some pretty bold claims about xylitol, a sugar substitute that's in a lot of things. And while it's definitely bad for dogs, it's great for people, and there's a lot of research out there about some surprising ways...

Great white sharks have nothing on these terrifying jaws. Some marine animals have adaptations that turn their jaws into harpoons, fishing nets, claw machines, and more.<b<br/>r/>

Hosted by: Savannah Geary (they/them)

Ever wondered who would win in a fight between a python and an alligator? What about a wolf versus a puma? SciShow has the answers. <b<br/>r/>

Hosted by: Hank Green (he/him)

Weather may be something you associate with life on land, but the ocean has its own version of fronts and storms. <b<br/>r/>

Hosted by: Jaida Elcock (she/her)

Plenty of animals do things that seem risky, but they clearly have a good reason for doing it. After all, they've made it this far by taking chances. But these birds really take the cake when it comes to daredevil stunts, all in the...

Whether you're an amateur sommelier or just a fan of the occasional glass, if you drink wine, you've heard of rules on how to pair it with food. But how many of those actually hold up? Let's get into the details of the best ways to...

Identical twins may look exactly alike, but they differ in some pretty weird ways. In this List Show, we'll explore five of them. <b<br/>r/>

Hosted by: Jaida Elcock (she/her)