Welcome back to SciShow Quiz Show, where Hank goes head-to-head with Craig Benzine, better known as WheezyWaiter.

Where did Zika come from, and what can we do about it? Molecular biologist Nina Fedoroff takes us around the world to understand Zika's origins and how it spread, proposing a controversial way to stop the virus -- and other deadly...

Compared to most animals in the vast kingdom, humans have one of the longest childhoods. And you might think this is so we have time to develop our advanced thinking skills, but scientists think it might not be that simple.

You probably don't think of active volcanoes as the ideal place to build a nursery, but for some animals, they're the perfect spot to incubate their unborn babies!

A cure for leprosy eluded humans for thousands of years, until the pioneering chemistry work of Alice Ball. With her treatment, patients recovered enough to be discharged from the hospital by the hundreds.

I noticed something weird about Disney Princesses lately. Naturally, I had to examine it through the lens of science. The answer led me to new knowledge about human development, the domestication and taming of animals, and why we find...

We’ve made a lot of progress recently in curing two deadly diseases that have been difficult to treat!

Theoretically, we could hide the Earth from faraway telescopes, using a properly placed laser pointer.

In the fight against antibiotic-resistant bacteria, we might be able to find new treatments by looking at some of the world’s most venomous snakes.

A new experimental design that can sustain mouse embryos outside the uterus means that soon, we may be able to watch mammalian embryo development in real time.

What swims in rivers and the ocean and is an awesome parent? Jessi and Squeaks talk about the amazing life cycle of salmon.

Ancient grains like Spelt, Emmer, and Einkorn are making a comeback, but are they better for you than modern wheats? The answer is, as usual, not a simple 'yes' or 'no'.

Living in a city means accepting a certain level of dysfunction: long commutes, noisy streets, underutilized spaces. Carlos Moreno wants to change that. He makes the case for the "15-minute city," where inhabitants have access to all the...

In this perspective-shifting talk, energy researcher Rose M. Mutiso makes the case for prioritizing Africa's needs with what's left of the world's carbon budget, to foster growth and equitably achieve a smaller global carbon footprint.

* Viewer discretion advised. This video includes discussion of mature topics and may be inappropriate for some audiences.

In 2009, 11,341 untested rape kits -- some dating back to the 1980s -- were found in an abandoned warehouse...

If you know one thing about mosquitoes, it’s probably their lust for blood. But there’s actually one species that almost never bites, even though it can. Could finding out why help us combat blood-borne diseases?

If you’re someone who is constantly coughing up mucus, you might not actually have allergies. There’s a possibility that your organs are flipped and you don’t even know it!

Around 500 Million years ago, Earth’s climate was warm, and the planet had nearly no ice, even at the poles. Then an asteroid broke apart deep in our solar system, and our planet plunged into an ice age at the same time. Are the two...

Do Fetuses Poop

Even though less than 1% of Earth's water is freshwater, it's the home for 50% of fish species. This is the Freshwater Paradox.

Contracting a virus is generally a bad thing, but among certain parasitic wasps, passing a virus to their offspring is actually key to their survival.

Physicists are used to the idea that subatomic particles behave according to the bizarre rules of quantum mechanics, completely different to human-scale objects. In a breakthrough experiment, Aaron O'Connell has blurred that distinction...

You might get the impression that all viruses are terrible, awful, no-good things that just wreak havoc on humanity. But, surprise: The truth is way more interesting!

Neurons often get all the credit for running the brain, but the work done by Ben Barres at Stanford University proved that glial cells are far more crucial to brain functioning than we had previously realized.