TED-Ed
TED-Ed: Would you raise the bird that murdered your children? | Steve Rothstein
A mother honeyguide has placed its chick into a bee-eater's nest— puncturing all the other eggs in the nest and leaving only its own hatching alive. Over the following weeks, the host parents devotedly care for the hatchling whose mother...
TED-Ed
TED-ED: What causes headaches? - Dan Kwartler
In ancient Greece, the best-known remedy for a long-standing headache was to drill a small hole in the skull to drain supposedly infected blood. Fortunately, doctors today don't resort to power tools to cure headaches, but we still have...
TED Talks
TED: Why I train grandmothers to treat depression | Dixon Chibanda
Dixon Chibanda is one of 12 psychiatrists in Zimbabwe -- for a population of more than 16 million. Realizing that his country would never be able to scale traditional methods of treating those with mental health issues, Chibanda helped...
Amoeba Sisters
Intro to Cell Signaling
Explore cell signaling with the Amoeba Sisters! This introductory video describes vocabulary such as ligand and receptor. It includes the stages of cell signaling (reception, transduction, and response) and different types of signaling...
SciShow
3 Ways Physics Can Help Us Understand the Brain
Brains are mysterious! Living brains are particularly tough to study, but sometimes scientists can use techniques from other disciplines to get a clearer picture. Here are some ways scientists are adapting tools developed for looking at...
SciShow
Why the Pandemic Has Us Buying Roller Skates and Baking Bread
A lot of people have been pretty cooped up lately and it’s starting to bring out some strange desires in people. What context can psychology offer to help us understand what might be going on?
TED Talks
Lindy Lou Isonhood: A juror's reflections on the death penalty
Lindy Lou Isonhood grew up in a town where the death penalty was a fact of life, part of the unspoken culture. But after she served as a juror in a capital murder trial -- and voted "yes" to sentencing a guilty man to death -- something...
TED Talks
TED: Our refugee system is failing. Here's how we can fix it | Alexander Betts
A million refugees arrived in europe this year, says Alexander Betts, and "our response, frankly, has been pathetic." Betts studies forced migration, the impossible choice for families between the camps, urban poverty and dangerous...
TED Talks
Danielle N. Lee: How hip-hop helps us understand science
In the early 1990s, a scandal rocked evolutionary biology: scientists discovered that songbirds -- once thought to be strictly monogamous -- engaged in what's politely called "extra-pair copulation." In this unforgettable biology lesson...
TED-Ed
TED-ED: The science of stage fright (and how to overcome it) - Mikael Cho
Heart racing, palms sweating, labored breathing? No, you're not having a heart attack -- it's stage fright! If speaking in public makes you feel like you're fighting for your life, you're not alone. But the better you understand your...
SciShow
A Vaccine Against ... Cancer?
If we can get it to work in humans, it will save a lot of lives.
TED-Ed
TED-Ed: What causes panic attacks, and how can you prevent them? | Cindy J. Aaronson
Countless poets and writers have tried to put words to the experience of a panic attack— a sensation so overwhelming, many people mistake it for a heart attack, stroke, or other life-threatening crisis. Studies suggest that almost a...
TED Talks
Irwin Redlener: How to survive a nuclear attack
The face of nuclear terror has changed since the Cold War, but disaster-medicine expert Irwin Redlener reminds us the threat is still real. He looks at some of history's farcical countermeasures and offers practical advice on how to...
SciShow
Bird Eggs Warn Each Other About Danger
Although they don’t seem like the talkative type, recent research suggests that bird eggs can use vibrations to relay warnings about the outside world to their nest-mates.
TED Talks
David Rothkopf: How fear drives American politics
Does it seem like Washington has no new ideas? Instead of looking to build the future, it sometimes feels like the US political establishment happily retreats into fear and willful ignorance. Journalist David Rothkopf lays out a few of...
SciShow
Why Does My Face Turn Red When I'm Angry?
Have you ever wondered why your face turns red when you’re angry? Check out this SciShow Quick Question to learn why!
SciShow
A Cancer Gene May Be More Friendly Than We Thought | SciShow News
Until now, researchers have assumed that healthy cells switch off the enzyme telomerase as a way to protect themselves from turning cancerous. But a new study suggests the enzyme may have a healthier role than we previously thought....
TED Talks
Paul Gilding: The Earth is full
Have we used up all our resources? Have we filled up all the livable space on Earth? Paul Gilding suggests we have, and the possibility of devastating consequences, in a talk that's equal parts terrifying and, oddly, hopeful.
TED Talks
TED: Can we build AI without losing control over it? | Sam Harris
Scared of superintelligent AI? You should be, says neuroscientist and philosopher Sam Harris -- and not just in some theoretical way. We're going to build superhuman machines, says Harris, but we haven't yet grappled with the problems...
SciShow
Why It's Good for COVID-19 Models to Be Wrong
As we react to the predictions that epidemiological models make, changing the ways we act and go about our lives, those estimates can appear totally off. But if a model’s predictions end up being wrong, that might mean it's done exactly...
MinuteEarth
How The Modern World Tricks Our Bodies Into Hurting Themselves
The same enzyme that used to save us is now killing us because the body reactions it catalyzes now cause more harm than good.
TED Talks
TED: The agony of opioid withdrawal -- and what doctors should tell patients about it | Travis Rieder
The United States accounts for five percent of the world's population but consumes almost 70 percent of the total global opioid supply, creating an epidemic that has resulted in tens of thousands of deaths each year. How did we get here,...
SciShow
When Everything Feels Like a Dream | Depersonalization-Derealization Disorder
It's not rare to feel like we're dreaming, even right after we wake up, but when it sticks around for longer than it should, it can merit its own diagnosis: depersonalization-derealization disorder (DDD). Hank unpacks what this disorder...
TED Talks
TED: Why we have an emotional connection to robots | Kate Darling
We're far from developing robots that feel emotions, but we already have feelings towards them, says robot ethicist Kate Darling, and an instinct like that can have consequences. Learn more about how we're biologically hardwired to...