Everywhere in the animal kingdom you can find teeth in all sorts of shapes and sizes, so you probably think you have a pretty good idea where they came from. But in reality, this debate is still a hot one, and it may have something to do...

You might be wondering what we know about Sputnik V, the world’s first vaccine for widespread use against COVID-19. Well, so is everyone. Many experts are skeptical as to whether the vaccine actually works, because it’s been tested in a...

If you lost your arm almost immediately after being vaccinated, would you still be vaccinated?

Improving batteries is a tough problem, but it’s also an important one because in many ways the future of our planet also depends on the future of batteries. Luckily, scientists are on the case, figuring out ways to give this essential...

If you're flying on a plane in a thunderstorm, you should be more worried about the wind than the lightning.

You may have had an ultrasound before, and wondered what that gel does. Well, that weird alien goop has a purpose, and it has to do with being like our weird human skin.

Can you imagine a cup of tea that doesn't obey the laws of physics? One that pours out of the bottom of your cup while crawling up the sides to the top? Join Hank Green for a fun new SciShow super episode all about superfluids!

High elevations can be a problem for humans. Since the air is thinner, you get less oxygen with every breath, leading to all kinds of negative side effects. But there are millions of people around the world who spend their whole lives at...

From a blacksmith's son, to one of the most repeated names in physics textbooks, Michael Faraday epitomized the spirit of scientific exploration

We know modern day healthcare to be a world of expensive premiums, long wait times and frustrating hospital bills. However health care has existed long before insurance premiums and online portals! Curious about when healthcare for...

The chemistry behind film photography is pretty fascinating. How do film cameras help us turn light into a physical image?

Snorkelers, surfers, divers. They all use them… wetsuits! So how do they work to keep you warm? It turns out layers of materials, and water itself!

We all know turtles live an amazingly long time, but what's their secret? And can we apply it to humans?

Honey bees may be small, but they manage to survive some pretty big disasters. Whether it’s hurricanes, wildfires, or even volcanoes, honey bees seem to have a plan for everything.

New research suggests climate change in the past might have helped dinosaurs spread across the world. And modern climate change is revealing some of the things they left behind.

Table saws, while quite useful for woodworking, are also dangerous machines, which is why some incredible safety mechanisms have been invented to help you remain one with your body parts. Hosted by: Stefan Chin

We usually think of 'hacking' as a bad thing, but scientists are working on ways to hack the brain that will greatly benefit people with prosthetics, and maybe someday people with paralysis.

Daffodils are cheerful symbols of spring… and also cold blooded killers. But it turns out, the poison in these plants may actually be helpful to us humans!

You think your tummy rumbles? Meet the ghost crab — it growls using teeth inside its stomach, and not because it’s feeling peckish!

Even though we are still in the early stages of the COVID-19 pandemic, scientists are trying to figure out the ways in which this disease may stick with people in the long term - from lasting lung damage to potentially triggering...

You might know that if you chomp on a Wint-O-Green Lifesaver in a dark room, you can see little blue flashes of light in your mouth. What you might not know is that this is an example of triboluminescence: a fascinating, somewhat...

Does your cat have a concept of time? Is it different from a snapping turtle's? Scientists study how animals process sensory information to figure out how they experience time. Spoilers: human kids and adults might experience time...

Fish consider the ocean their own personal toilet. Well, researchers found out that's not such a bad thing!

Corals might have a fighting chance against bleaching, and fuzzy moths aren't just sporting their fur because it's adorable. Hosted by: Hank Green