PBS
How Did Our Most Famous Ancestor Really Die?
Did our most famous fossil ancestor, Lucy, die by falling out of a tall tree? The answer is part of a decades-long debate over how, exactly, our ancestors transitioned from life in the trees to life on the ground.
PBS
Where Are The Worlds In Many Worlds?
Many Worlds interpretation of quantum mechanics proposes that every time a quantum event gets decided, the universe splits so that every possible outcome really does occur. But where exactly are those worlds, and can we ever see them?
PBS
The Curious Case of the Cave Lion
A mysterious, large feline roamed Eurasia during the last ice age. Its fossils have been found across the continent, and it’s been the subject of ancient artwork. So what exactly were these big cats?
PBS
How Humans Became (Mostly) Right-Handed
No other placental mammal that we know of prefers one side of the body so consistently, not even our closest primate relatives. But being right-handed may have deep evolutionary roots in our lineage. And yet, being a leftie does seem to...
PBS
How Plate Tectonics Gave Us Seahorses
How did seahorses — one of the ocean’s worst swimmers — spread around the globe? And where did they come from in the first place?
MinuteEarth
How We Learned That Water Isn't An Element
For thousands of years, water was thought to be an element. That is, until some of the greatest chemists in the world managed to crack it open.
SciShow
This Sturgeon-Paddlefish Hybrid Shouldn't Exist | SciShow News
Chromosome shenanigans have resulted in some unexpected hybrid fishes. Also, this record-breaking mouse lives at a ridiculous altitude.
SciShow
The World's Next Ocean
A volcanic eruption and series of earthquakes in 2005 were important not because they did a great deal of damage to humans, but because they’re geologic evidence of where Earth’s next ocean will most likely pop up.
SciShow
5 Things We Still Get Wrong About Human Reproduction
You'd think we'd know everything there is to know about sexual reproduction. But as it turns out, there are still quite a few things we picked up that aren't exactly true, and we're here to correct that.
Curated Video
Us Weekly Entertainment Director on why we're so fascinated with the Jolie Pitt split
SHOTLIST:RESTRICTION SUMMARY:FILM CLIPS ARE CLEARED FOR MEDIA BROADCAST AND/OR INTERNET USE IN CONJUNCTION WITH THIS STORY ONLY. NO RE-SALE. NO ARCHIVE. AP EntertainmentLos Angeles, 21 Jan. 20121. Various of Brad Pitt and Angelina Jolie...
SciShow
This Sturgeon-Paddlefish Hybrid Shouldn't Exist | SciShow News
Chromosome shenanigans have resulted in some unexpected hybrid fishes. Also, this record-breaking mouse lives at a ridiculous altitude.
Be Smart
What Do Raindrops Really Look Like?
What do raindrops look like? Exactly how we drew them as kids, right? Wrong! Teardrop-shaped rain is physically impossible. This week I went inside a vertical wind tunnel to bring you the true shape of rain.
Crash Course
Schizophrenia & Dissociative Disorders: Crash Course Psychology
Did you know that Schizophrenia and Multiple Personality Disorder aren't the same thing? Did you know that we don't call it Multiple Personality Disorder anymore? In this episode of Crash Course Psychology, Hank takes us down the road of...
PBS
How the Chalicothere Split In Two
Two extinct relatives of horses and rhinos are closely related to each other but have strikingly different body plans. How did two of the same kind of animal, living in the same place, end up looking so different?
SciShow
The World's Next Ocean
A volcanic eruption and series of earthquakes in 2005 were important not because they did a great deal of damage to humans, but because they’re geologic evidence of where Earth’s next ocean will most likely pop up.
SciShow
Why Are Periodical Cicadas So ... Periodical?
Certain cicada species in North America emerge from the ground by the millions every 13 or 17 years. But why those specific intervals? Are cicadas secretly prime-number-loving mathematicians?!
Amoeba Sisters
Mitosis vs. Meiosis: Side by Side Comparison
After learning about mitosis and meiosis from our individual videos, explore the stages side by side in this split screen video by The Amoeba Sisters! Expand video details for table of contents. Vocabulary in this video includes...
MinuteEarth
How This River Made Chimps Violent
When a group of apes got split apart, slight differences in their new environments led to big differences in future generations.
PBS
Network Mathematics and Rival Factions | Infinite Series
The theory of social networks allows us to mathematically model and analyze the relationships between governments, organizations and even the rival factions warring on Game of Thrones.
SciShow
The Truth About the Sun's 'Twin' and the Dinosaurs
Researchers published a paper last month, exploring the possibility that our sun might have once had a stellar twin! Could our solar system have once been a binary, or even a multi-star system?
Be Smart
Doomsday Machines
Nuclear weapons represent the darker side of E=mc^2. Science has given us the ability to understand what will happen if these weapons are ever used again.... and what will happen if they are *never* used again.
SciShow
There Are Crystal Mirrors Hidden in Scallop Eyes
Sea creatures abound this week, as scientists make discoveries about scallop eyes and use models to help figure out the age old mystery, "Which came first, comb jellies or the sea sponge?”
SciShow
What Did the First Animal Look Like?
If you trace your way back along the tree of life, eventually you'd come face-to-face with the very first animal. But what exactly would that animal have looked like?
TED-Ed
TED-Ed: Can you solve the temple riddle? - Dennis E. Shasha
Your expedition finally stands at the heart of the ancient temple. But as you study the inscriptions in the darkness, two wisps of green smoke burst forth. The walls begin to shake. The giant sandglass begins flowing with less than an...