SciShow
Poor, Misunderstood Poison Ivy
It sure seems like some plants really don't want you hiking through their woods, but maybe your immune system is just overreacting.
SciShow
Hyenas Once Lived in the Frigid Arctic
Prehistoric teeth prove that hyenas once roamed the Arctic and the relationship between ancient crocodiles and climate is more complicated than we thought.
TED Talks
TED: You don't need an app for that | Toby Shapshak
Are the simplest phones the smartest? While the rest of the world is updating statuses and playing games on smartphones, Africa is developing useful SMS-based solutions to everyday needs, says journalist Toby Shapshak. In this...
TED Talks
TED: Africa's great carbon valley -- and how to end energy poverty | James Irungu Mwangi
Our lives depend on curbing climate change, but so many priorities seem to be in competition. What's the most urgent thing humanity can do right now? Social entrepreneur James Irungu Mwangi tells us why Africa could be the ideal home for...
MinuteEarth
Why Don't Americans Eat Reindeer?
Reindeer meat could’ve entered North American cuisine and culture, but our turn of the century efforts to develop a reindeer industry were stymied by nature, the beef lobby, and the Great Depression....
TED Talks
TED: Tagging tuna in the deep ocean | Barbara Block
Tuna are ocean athletes -- fast, far-ranging predators whose habits we're just beginning to understand. Marine biologist Barbara Block fits tuna with tracking tags (complete with transponders) that record unprecedented amounts of data...
SciShow
The Solar Eclipse of 2015!
This week, an update on Dawn's rendezvous with Ceres, a changing of the guard on the ISS, and a viewer's guide to this year's solar eclipse!
SciShow
How Farmers Accidentally Killed Off North America's Locusts
Locusts are a huge agricultural pest...except in North America. What happened to the Rocky Mountain locusts that once swarmed this continent? Researchers think that the colonization of the North American West might have had something to...
SciShow
Transit of Venus 2012: A Viewer's Guide
Hank briefs us on the upcoming planetary transit of Venus, which will be observable June 5th and 6th of 2012.
Crash Course
Ecology - Rules for Living on Earth: Crash Course Biology
Hank introduces us to ecology - the study of the rules of engagement for all of us earthlings - which seeks to explain why the world looks and acts the way it does. The world is crammed with things, both animate and not, that have been...
SciShow
Ecosystems Around the Globe Contain Echoes of Past Peoples
There’s a common misconception that humans of the past lived in harmony with their environments and left them “pristine and untouched.” However, there is plenty of evidence that these relationships were much more complicated
TED Talks
Andreas Schleicher: Use data to build better schools
How can we measure what makes a school system work? Andreas Schleicher walks us through the PISA test, a global measurement that ranks countries against one another -- then uses that same data to help schools improve. Watch to find out...
SciShow
The Scary American Bat Die-Off
In North America, bats are in mortal danger, and the poor little guys can't even activate their own Bat-Signal to call for help. A terrible infection is ravaging their populations, and it's as serious as a heart attack. Hank has the...
Crash Course
How Does Language Move? Crash Course Geography
While we can’t explore every cultural trait in the world, language is an important system of spoken, signed, or written symbols humans use to express themselves. It’s a major marker of identity that often unites members of the same...
Crash Course
What Are Glaciers? Crash Course Geography
Today we’re going to talk about glaciers. These behemoth globs of compressed ice and snow moving across the land created fertile soils and physical features while also serving as frozen time capsules. They recorded both Earth’s climatic...
SciShow
Why Can’t You Use E15 Gas in Summer?
A new strain of bird flu has been detected in North American birds for the first time in seven years. And U.S. President Biden is temporarily lifting the country's summertime ban on E15 gasoline.
SciShow
Move Over, Mars We Could Farm on Asteroids!
When people live throughout the solar system, we'll need some way to feed them that doesn't involve constant shipments of Earth-grown food. Will the asteroid belt be our new cosmic food court?
TED Talks
TED: The case for optimism on climate change | Al Gore
Why is Al Gore optimistic about climate change? In this spirited talk, Gore asks three powerful questions about the man-made forces threatening to destroy our planet -- and the solutions we're designing to combat them. (Featuring Q&A...
SciShow
Warding Off Murder Hornets with... Poop?
The murder hornets of your nightmares aren't totally unstoppable - all you need is a little poop.
MinuteEarth
MinuteEarth Explains: Food
In this collection of classic MinuteEarth videos, we examine the weird world of what we like to eat.
Crash Course
Why the Evolutionary Epic Matters: Crash Course Big History
Today we're talking about evolution_basically the history of all life on Earth. The thing is, why are we talking about this. Well, the story of life, all the way back to single celled microbes billions of years ago, is all part of our...
TED Talks
Hans and Ola Rosling: How not to be ignorant about the world
How much do you know about the world? Hans Rosling, with his famous charts of global population, health and income data (and an extra-extra-long pointer), demonstrates that you have a high statistical chance of being quite wrong about...
SciShow
The Oldest DNA Ever Found
Researchers mapped the mammoth family tree by extracting DNA from fossils. Also, scientists found some sessile animals living under Antarctica's ice shelf, and they're really cool.