Sounds that animals make can be really different, and it turns out that there's a reason why some species communicate with certain sounds.

Summer is nearly here, and that means Squeaks and Jessi will be spending lots of time playing with dirt in the garden! But it won’t just be those two out there making their garden grow big and beautiful. They’ll be getting help from lots...

You hit the gym for the first time forever and now you can barely move... that means you're getting totally ripped, right? Maybe! Find out on this week's QQ!

Sleep is your life-support system and Mother Nature's best effort yet at immortality, says sleep scientist Matt Walker. In this deep dive into the science of slumber, Walker shares the wonderfully good things that happen when you get...

This video highlights the urgent issue of wildlife extinction and proposes a medical triage approach to prioritize species for conservation efforts. It questions the current emphasis on charismatic species like pandas, suggesting that we...

Picture your favorite place in nature. How would you feel if it disappeared tomorrow? In this love letter to the planet, social worker and environmental activist Knut Ivar Bjørlykhaug invites us to confront the deep, difficult emotions...

If you've ever taken care of a baby, you might have heard that sleeping on the same bed with them, AKA co-sleeping, is a big no-no. But the research into the ins and outs of bed sharing is more complicated than you might...

Why do we sleep? Well... that's a tricky question. More easily answered is the question,"How do we sleep?" In this episode of Crash Course Psychology, Hank discusses some of the ways our brain functions when sleeping and how it...

There's a lot about sleep that we don't understand, like why we even sleep in the first place, for example. Here are some amazing discoveries biologists have made while trying to solve the mystery of sleep.

"The caves themselves are very complex with hazards deep inside. The recipe is set for a cave rescue with a lot of dire consequences," says Eduardo Cartaya, a National Geographic grantee who is leading an expedition into the ice caves...

Many people would say the connection between happiness and gratefulness is very simple: when you are happy, you are grateful. But think again. Is it really the happy people that are grateful? Quite a number of people have everything that...

50 to 70 million people are thought to have some kind of sleeping disorder. If you're one of those people, desperate for a good night's sleep, scientists may have an option for you: rocking!

Every day, people around the world spend 16 billion hours on unpaid care work — cooking for families, caring for children and older relatives and other routine household tasks — often in addition to other jobs. Employment advocate Sharmi...

In this short talk, Arianna Huffington shares a small idea that can awaken much bigger ones: the power of a good night's sleep. Instead of bragging about our sleep deficits, she urges us to shut our eyes and see the big picture: We can...

Who among us hasn't uttered the phrase "I'll sleep when I'm dead"? Well, sleep deprivation can totally kill you. But you might be surprised to learn what the actual cause of death is, and a technique you can use to stay awake for the...

The effects of dark matter on galaxies is a mystifying and difficult thing to study, but the Milky Way's galactic bar might present an exciting way to quantify how much of it exists!

Every morning we wake up and regain consciousness -- that is a marvelous fact -- but what exactly is it that we regain? Neuroscientist Antonio Damasio uses this simple question to give us a glimpse into how our brains create our sense of...

Restaurateur Will Guidara's life changed when he decided to serve a two-dollar hot dog in his fancy four-star restaurant, creating a personalized experience for some out-of-town customers craving authentic New York City street food. The...

In this video Paul Andersen explains the importance of models and visual representations in an AP Biology class. Science practices are overarching skills and knowledge required to be successful in an AP Biology classroom. Models for...

Jessi stayed up too late, so she's feeling really tired. Luckily, she isn't too tired to tell you all about what happens when we sleep and why we feel so terrible when we don't get enough sleep!

This video is answering the question of how is quicksand formed.

This video is answering the question of how long should tea brew.

Learn about United States money with this fun educational music video and parents. Brought to you by KLT. Don't forget to sing along.

Howcast - Learn about the top seven museums to visit on a trip to Houston, Texas in this Howcast travel video.