Epigenetics: Why Inheritance Is Weirder Than We Thought

Nick Jenkins talks with Hank Green about selective breeding, with special guest Jessi Knudsen Castañeda.

In which Jacob Clifford and Adriene Hill launch a brand new Crash Course on Economics! So, what is economics? Good question. It's not necessarily about money, or stock markets, or trade. It's about people and choices. What, you may ask,...

Jessi and Squeaks found a ton of rocks for their rock collection... but they're too heavy to get back to the fort! Join them as they figure out the perfect simple machine to help them out: the wheel and axle!

Rodents are known for being pretty small, but wait till you see the world's largest rodent: the capybara!

Naked mole-rats are not keeping their weirdness on the inside. And all their superficial strangeness—the distinctive look, the complex underground society, even the strategic poop-eating—is just the tip of the weird iceberg.

Howcast - Learn basic beatboxing sounds in this Howcast video with Beatboxer Entertainment.

Howcast - Rats have strong teeth that can chew through wood, cinder blocks, and copper. Rid your home of rats while ensuring the safety of your pets and children.

Simply put, rats are gross. Nobody wants these creatures in their inner sanctum. Here's how to cope.

3 different studies found out what these animals most likely dream about.

Could ketamine be more than just an antidepressant? New research suggests this drug may also boost empathy and social connection. Dive into a groundbreaking study exploring ketamine's potential to transform mental health treatment for...

In this video, the teacher discusses various types of rodents, their characteristics, habitats, and ecological roles. The video also clarifies misconceptions about otters and other animals being rodents. It provides interesting facts...

If every human disappeared, homes would decay, animals would fend for themselves, and cities would revert back to nature. There would be no more pollution or hunting, but also no more farms or pets. Scientists would be able to find...

An animal that eats both meat and plant materials.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films...

Explore how conservation projects are helping endangered animals.
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Our universe - Sharing our Earth - Looki
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Learning Points
When there are not very many of a particular type...

Video 2 of the Echolocation Unit. This segment focuses on debunking common myths about bats, such as the misconception that they are flying rodents or blind creatures. Students will learn that bats are actually closely related to...

Just how dark were the Dark Ages? How did the Black Plague kill up to 100 million people and change the face of the Earth?

Unpack the concept of laziness, often misunderstood as just a lack of action. Delve into the psychological, genetic, and physiological aspects of why people may seem lazy, including the role of dopamine in motivation and effort. This...

A recent headline sounded the alarm about a study that found that smartphone use was related to the early onset of puberty in children. This headline was a real triple threat: fear of technology, children under threat, and sexualization...

Fentanyl is many times more potent than heroin or morphine, and is responsible for a lot of overdose deaths. Recent news reports have covered a potential fentanyl vaccine - how does that work, and how far are we from human trials?<br/>

Join Janice Poon, the mastermind behind the terrifyingly delectable dishes in Hannibal, as she unveils the secrets of creating gruesome yet delicious food for film and TV. From severed heads to bloody feasts, discover the artistry behind...

British scientists have made a groundbreaking discovery in restoring movement to rats paralyzed by spinal injury. By using an enzyme called chondroitinase ABC, they were able to overcome the scar tissue that prevents nerve regeneration....

Jessi explains what rats are, where they came from, and how to care for them in captivity. Rats are awesome in so many ways!

Do antidepressants shrink your brain? No, but depression does. This question is based on a viewer comment. I think it’s pretty common for people to believe this. But in actuality, the illness, major depression causes...