PBS
How Horses Took Over North America (Twice)
The ancestors of modern horses became so successful that they spread all over the world, to Europe, Asia, South America, and Africa. But in their native range of North America, they'll vanish for 10,000 years. Until another strange...
TED Talks
TED: What we don't know about mother's milk | Katie Hinde
Breast milk grows babies' bodies, fuels neurodevelopment, provides essential immunofactors and safeguards against famine and disease -- why, then, does science know more about tomatoes than mother's milk? Katie Hinde shares insights into...
TED Talks
Geoffrey West: The surprising math of cities and corporations
Physicist Geoffrey West has found that simple, mathematical laws govern the properties of cities -- that wealth, crime rate, walking speed and many other aspects of a city can be deduced from a single number: the city's population. In...
Bozeman Science
AP Biology Lab 5: Cellular Respiration
Paul Andersen explains how a respirometer can be used to measure the respiration rate in peas, germinating peas and the worm. KOH is used to solidify CO2 produced by a respiring organism.
SciShow
5 Underwater Farmers
Humans have been farming in the ocean for years, but we're not the only saltwater farmers out in the deep blue sea.
TED Talks
How a strong creative industry helps economies thrive | Mehret Mandefro
When global leaders think about which industries can fuel economic growth, the arts are often overlooked. But filmmaker Mehret Mandefro says the creative sector actually has the power to grow economies -- while also helping safeguard...
SciShow
The Secret to Big Gains? Healthy Gut Bacteria #inmice | SciShow News
If you go to the gym often enough, you might be familiar with protein powders and shakes, but one study thinks that the secret to big gains might actually be your gut bacteria.
TED-Ed
TED-Ed: No one can figure out how eels have sex | Lucy Cooke
From Ancient Greece to the 20th century, Aristotle, Freud, and numerous other scholars were all looking for the same thing: eel testicles. Freshwater eels could be found in rivers across Europe, but no one had ever seen them mate and no...
TED Talks
TED: A global food crisis may be less than a decade away | Sara Menker
Sara Menker quit a career in commodities trading to figure out how the global value chain of agriculture works. Her discoveries have led to some startling predictions: "We could have a tipping point in global food and agriculture if...
SciShow Kids
Life in the Redwoods | Surprising Animals of the Redwood Forest
Jessi and Squeaks are learning more about the redwoods, and all the different animals that live in the different layers! Second Grade Next Generation Science Standards Disciplinary Core Idea: LS4.D: Biodiversity and Humans - There are...
SciShow
6 Accidental Discoveries You've Probably Never Heard Of
From insects to infections, and polymers to pacemakers, scientists have discovered some very cool things entirely by accident, thanks to some careful observation and curiosity. Chapters ALEXANDER FLEMING 0:19 A CRICKET STD 1:21 STREP'S...
TED-Ed
The world's largest organism | Alex Rosenthal
The largest animal in the world is the blue whale, which weighs a massive 150 metric tons. Even so, it's not remotely close to being the largest organism by weight. That title goes to an organism so huge that it's estimated to weigh the...
MinuteEarth
MinuteEarth - The Story of Our Planet
Our first video ever! Agriculture, hula hoops, SARS, and THIS video: how long did they take to get around the earth?
TED-Ed
TED-Ed: Could comets be the source of life on Earth? - Justin Dowd
While comets were historically thought to be ill omens of war and famine, recent science has revealed that these celestial wonders actually contain amino acids, the building blocks of life on Earth. Justin Dowd explores the implications...
SciShow
How Do Animals Re-Grow Limbs (And Why Can't We?)
Starfish can regrow lost arms, and salamanders can sprout new limbs. So why can't we? Sci Show explains the science of regeneration, and explores the limitations the humans face -- and are trying to go beyond.
SciShow
How Celestial Bodies Affect Life in the Ocean
Life on Earth has always been shaped by other bodies in space, and life in our oceans is especially susceptible to interactions that have huge effects on life as we know it!
MinuteEarth
Should We Grow Human Organs In Pigs?
An amazing new technology will let scientists grow new kidneys for patients using their own stem cells inside of pigs.
SciShow
The Plants That Live on Artificial Light (and Why That’s Bad)
Plants are finding their ways into caves, and it's all our fault.
SciShow
Secrets of Snow | Compilation
Winter is upon us, and for many that includes snow! And although snowflakes are ice crystals that become flakes under the right conditions, they also have mysteries that can be less simple to explain!
TED-Ed
TED-ED: The microbial jungles all over the place (and you) - Scott Chimileski and Roberto Kolter
As we walk through our daily environments, we're surrounded by exotic creatures that are too small to see with the naked eye. We usually imagine these microscopic organisms, or microbes, as asocial cells that float around by themselves....
TED Talks
TED: The magic of Khmer classical dance | Prumsodun Ok
For more than 1,000 years, Khmer dancers in Cambodia have been seen as living bridges between heaven and earth. In this graceful dance-talk hybrid, artist Prumsodun Ok -- founder of Cambodia's first all-male and gay-identified dance...
SciShow Kids
The World’s Smelliest Flower
Most of us love flowers for how good they smell! But did you know some flowers are actually pretty stinky? Join Jessi and Squeaks to learn all about Trudy: The World's Smelliest Flower!
SciShow
SciShow Quiz Show: Humans, Airplanes, and Sex
What happens if you eat too many raw eggs? What are those little rods sticking out of airplane wings? All this, and more as Nicole Sweeney, host of Crash Course Sociology, faces off against Hank in an episode of the SciShow Quiz Show.
SciShow
How Do I Grow a Beard?
People ask Google everything under the sun. One of the most commonly searched questions in the world is “How do I grow a beard?”? Let SciShow explain.