In this video Paul Andersen explains the structures and functions of seventeen major parts of the brain. He begins with a quick discussion of brain evolution and ends with a review of the major parts presented inside the brainstem,...

In this video Paul Andersen explains in more detail the history of the Earth. He shows how the history of the Earth is written in the rocks that are built up over time. Fossils allow us to compare different rock layers relative to one...

Rivers are one of nature's most powerful forces -- they bulldoze mountains and carve up the earth, and their courses are constantly moving. Understanding how they form and how they'll change is important for those that call their banks...

Mexico's government said Sunday that 318 people died from last week's major earthquake, including 180 people in Mexico City, where dozens of buildings collapsed. Outside the city, residents of rural towns and villages are assessing...

What's something pandas, orangutans, rhinos, and gorillas have in common? They're all endangered animals. Join Jessi and Squeaks to learn how an animal becomes endagered and what we can do to help them!

So we have Weather and Climate... but are they the same thing? No, no they are not. But they are both super important to how the geosphere is shaped. In this episode of Crash Course Kids, Sabrina chats with us about the differences...

Traditionally, geography is studied as two interconnected parts: physical geography and human geography. For the first half of this series, we will be focusing on physical geography, which is all about recognizing the characteristics of...

So, what is geography? In our first episode of Crash Course Geography, we will endeavor to answer this seemingly simple question with the help of a similarly simple factoid: that the US imports more than 3 billion pounds of bananas from...

In this video Paul Andersen explains how forests and rangelands are managed to provide renewable lumber and cattle. Threats to renewability of forests include old-growth logging, forest fires, and tree plantations. Threats to renewable...

Why is there a hexagonal structure in honeycombs? Why not squares? Or asymmetrical blobby shapes? In 36 B.C., the Roman scholar Marcus Terentius Varro wrote about two of the leading theories of the day. First: bees have six legs, so they...

Vilayanur Ramachandran tells us what brain damage can reveal about the connection between celebral tissue and the mind, using three startling delusions as examples.

Today we're going to take a hike up Mt. Kilimanjaro so we can talk about how the geosphere changes based on many different things. On the same mountain we can travel through many different habitats like rain forests, savannas, and...

What happened March 27, 1964? Alaska knows very wellÉ Join us to learn more about earthquakes with host Hank Green on this infusion of SciShow.

In this video Paul Andersen explains how ecosystems function. He begins with a description of how life on the planet is ordered from large to small in biomes, ecosystems, communities, population, and individuals. He describes the major...

Get to know Olympus Mons on Mars, the biggest volcano in the solar system, and find out why a planet that's smaller than Earth has volcanoes that are bigger than ours!

Today Phil explains how telescopes work and offers up some astronomical shopping advice.

Imagine setting sail from Hawaii in a canoe. Your target is a small island thousands of kilometers away in the middle of the Pacific Ocean - a body of water that covers more than 160 million square kilometers. For thousands of years,...

An inside out planetary nebula has given astronomers insight into what might happen in our own solar system someday, and it's that time of year again to search for shooting stars.

New ReviewLocal business culture in Hong Kong can be traced back to the early British trading companies in the 1700s. Today, these businesses, known as hongs, continue to operate alongside more modern Chinese and foreign firms. Tradition, family,...

New ReviewKnown as Germany's Manhattan because of the numerous skyscrapers recently built there, Frankfurt is home to the continent’s financial capital. It's the headquarters of the European Central Bank as well as the location of Germany's major...

New ReviewFrom the tropical heat of southwestern China to the icy winters of the north, China’s climate is as varied as any you’ll find in the world. While the winters are harsh in northern China, the summers tend to be warm and rainy. In Beijing,...

New ReviewAlong with Pretoria, Johannesburg is a commercial and financial center located in the Gauteng province. With more than 7 million people, it’s the largest city in South Africa. After gold was discovered in the area in 1886, immigrants...

New ReviewDurban’s subtropical climate makes it a popular tourist center. With a population of more than 3 million, Durban is the country’s busiest port and its second-largest city. It is also home to the country’s largest concentration of...

New ReviewSingaporeans enjoy socializing but spend much of their free time with a small circle of friends and family. In general, don’t expect them to make the first overture to get together socially; on the other hand, they will probably respond...