Be Smart
Why Don’t Humans Hibernate?
New ReviewNature has had to come up with some crazy ways to survive harsh winters. But none are weirder than hibernation. Turns out there is more than one kind of hibernation, and studying all these ways that life slows down in the cold might help...
Be Smart
Camouflage Isn't What It Appears To Be
New ReviewCamouflage is nature’s ultimate game of hide-and-seek, and the secret to winning this game is all in the brain. By studying the masters of disguise, we can see how they trick the brain to make themselves invisible — and what this can...
Be Smart
How Scientists Cracked the Secret To Making Diamonds
New ReviewFor centuries, diamonds were one of the most mysterious materials on Earth. They were beautiful, indestructible, and completely unexplained. Today, we’re exploring how scientists unlocked their secrets, and how one lab recreates the...
Be Smart
Why Useless Knowledge Can Be So Useful
New ReviewOur lizard friend the Gila monster probably has no idea that a chemical in its spit inspired one of the most important medical advancements of the 21st century. But this story is really about something bigger. Something deeper, beneath...
Be Smart
What Synesthesia Feels Like
New ReviewDid you know some people 'see' letters in color or 'taste' music? In this video, we’ll talk about synesthesia, how it works in the brain, and why some people experience these fascinating sensory connections while most of us don’t.
Be Smart
The Weird Science That Lets Insects Fly in the Rain
New ReviewImagine the scale of raindrops if you were the size of a small bird. Or mosquito. Flying through a drizzle should be deadly! Like flying through falling cars and boulders. And yet it’s not, because nature has given them a...
Be Smart
What’s Inside the Oldest Rocks in the World?
New ReviewThe oldest rocks on Earth are more than just ancient—they’re time machines, holding clues to Earth’s missing history and revealing what happened in the unknown times after the Big Bang. We’ll work with our Adam and Joss from Howtown to...
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Will Earth Run Out of Oxygen
New ReviewPlants eat sunlight and air to make life. But the key enzyme behind it all, called RuBisCO, isn’t actually all that great at its job. Let’s talk about how photosynthesis really works, why oxygen isn’t coming from where you think, and...
Be Smart
Why Are Blood Types a Thing?
New ReviewAcross life on Earth, blood comes in red, blue, green, purple, even clear. But why? And what makes your blood different from mine? This video will teach you everything you need to know about the strange world of blood—what it does, why...
PBS
The Dinosaurs Too Big To Be Dinosaurs
New ReviewHow did sauropods, uniquely large land animals, actually live, with their anatomy and physiology pushed to such extremes? Well, their unprecedented gigantism came with some equally massive costs…
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When the CIA Spied on Planet Earth
New ReviewIn 1995, a few years after the collapse of the Soviet Union, a top-secret, first-of-its-kind US spy satellite program was declassified, leading to the unexpected story of how former enemies would become scientific allies, and technology...
Be Smart
Is this Chicken?
New ReviewOur 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...
Be Smart
I Don’t Know How to Feel About 2023
New Review2023 was a wild year with everything from scorching temperatures to massive wildfires. Even with more renewable energy than ever, 2023’s climate data still seems really bad. So how should we think about climate change today? And what can...
Be Smart
The Surprising Power of Sex in Evolution
New ReviewWe all know Charles Darwin's theory of evolution, right? Natural selection? But what about his lesser-know theory of evolution: sexual selection. Let’s talk about how animals like peacocks, whose eye-catching physical traits make them...
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Why Your Grandma Is an Evolutionary Mystery
New ReviewThis is one of the weirdest mysteries of human evolution: Why do we have grandmas? From menopause to our slow maturation and super-long lifespans, humans are quite unique in the animal kingdom. Could grandma be an evolutionary secret...
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How Feathered Dinosaurs Accidentally Invented Flight
New ReviewHow did dinosaurs become birds—and what good is half a wing? Join Joe and a few brave chickens as they recreate a brilliant experiment that helps solve one of evolution’s greatest mysteries: the origin of feathered flight.
PBS
Why Paleontologists Can’t Stop Fighting About Spinosaurus
New ReviewWhat does it mean to be a “semi-aquatic” dinosaur? Was it wading in the shallows, or could it have been a skilled swimmer? Each scenario paints a very different picture of Spinosaurus, and the discovery of new fossils has paleontologists...
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Can a Billion Oysters Save New York City?
New ReviewWhen people picture New York City they see skyscrapers, subways, and a concrete jungle. But the Big Apple is really a seaside city built on an archipelago. In the wake of a century of industrial pollution and climate change-fueled...
Amoeba Sisters
Menstrual Cycle Walkthrough: Phases & Hormonal Regulation
In this menstrual cycle video, explore the ovarian cycle and uterine cycle with the Amoeba Sisters! This video will walk through major events in phases of the ovarian cycle (follicular phase and luteal phase) and phases of the uterine...
Amoeba Sisters
Angiosperm (Flowering Plants) Reproduction
Join the Amoeba Sisters as they introduce angiosperms (flowering plants) before exploring flower parts, pollination, and double fertilization in angiosperms! This video also talks about the importance of pollinators.
Amoeba Sisters
Intro to Cladograms and Phylogenetic Trees
Join the Amoeba Sisters as they introduce the basics about cladograms and phylogenetic trees. The Amoeba Sisters walk through the process of building a basic cladogram and mention vocabulary such as: shared ancestral character, shared...
Amoeba Sisters
Action Potential
Join the Amoeba Sisters as they explore the action potential. This video discusses resting membrane potential before going into the phases of the action potential including vocabulary such as depolarization, repolarization, and...
SciShow
The Lake Where Hundreds of People Died… Twice
India's Roopkund Lake, also known as Skeleton Lake, is the site of gruesome sculptures of human bones. Many causes of these deaths have been proposed, from hail to divine intervention. But scientists now think that whatever happened, it...
SciShow
This Is The Best Predator Defense Of All Time
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...