You don't have to be a professional scientist to make a contribution to our collective knowledge. Today, we look at several projects that have benefitted from the power of citizen science!

About 10% of the world population is left-handed. But why does handedness exist and what determines which hand is dominant? Scientists have suggested several theories, but the answer may well lie with evolution.

The world of milks is much wider than your coffee shop oat variety. From rhinos to cockroaches, milk is essential for the development of many animals' offspring.

The animal kingdom boasts an incredible diversity of eyes. Some rotate independently while others have squiggly-shaped pupils. Some have protective lids, others squirt blood. But which creature has the best sight? Which sees best in the...

The UN predicts that antimicrobial resistance will be our biggest killer by 2050. "That should really scare the hell out of all of us," says bioprocess engineer Leon Marchal. He's working on an urgently needed solution: transforming the...

Scientists have known for some time that certain animals can breathe using their butts, but now, researchers have determined that certain mammals can too! And in very much other news, researchers in Washington state have developed a new...

One potential avenue for cancer treatment uses electricity not from any outside machine, but from within our own bodies.

Animals might be music lovers, but how can we know? Is the ability to perceive and appreciate music a shared human and animal experience?

Plants! We absolutely depend on them. Oxygen, food, and looking super nice to boot! But, plants have a lot more going on than meets the eye. How do we know that? Investigations and Experimentations!

As we mentioned last episode, one of the best test spaces for building new AI systems are games. This is because games provide a great framework for an AI to learn an objective and slowly improve. In recent years, AI has made huge...

If you’ve ever been around animals, you know they can have different personalities, but there’s one trait that scientists used to believe was uniquely human.

Ratites have spread to Africa, Australia, New Zealand, and South America. And there are fossils of Ratites in Europe, Asia, and North America too. That's a lot of ground to cover for birds that can't fly. So how did Ratites end up all...

Some researchers trained the immune systems of leukemia patients to help keep them in remission. And other researchers found that it's possible to help African clawed frogs regrow lost limbs, an ability they normally lose once they hit...

We’ve spent most of this series talking about computers. Which makes sense - this is Crash Course COMPUTER SCIENCE after all. But at their core computers are tools employed by humans and humans are pretty complicated. So today, we’re...

Plenty of animals have tears that moisturize their eyes. But does that mean they're sad? Quick Questions explains!

As a research scientist at Google, Margaret Mitchell helps develop computers that can communicate about what they see and understand. She tells a cautionary tale about the gaps, blind spots and biases we subconsciously encode into AI --...

So, today we're talking about African Pantheons. Now, you might say, that's ridiculous. Africa isn't a single place with a single pantheon, and we'd be fools to try and cover all that in an eleven minute video. You'd be right. Instead...

Hank squares off against the host of SciShow Kids, Jessi Knudsen Castaneda, to match wits about chemistry, evolution, and how babies are weird!

Sharing the results of a massive, worldwide study, geneticist Svante Pääbo shows the DNA proof that early humans mated with Neanderthals after we moved out of Africa. (Yes, many of us have Neanderthal DNA.) He also shows how a tiny bone...

It's really difficult for life to create blue pigments, but the color can appear in a handful of compounds that create just the right conditions to reflect blue photons.

About 10% of the world population is left-handed. But why does handedness exist and what determines which hand is dominant? Scientists have suggested several theories, but the answer may well lie with evolution.

Thanks to humans, old school apex predators are struggling to hold onto their perch at the top of the food chain. And now a new class of adaptable mesopredators are remaking the ecosystems they take over....

Invasive species can wreak havoc in their new habitats, and the survival of entire ecosystems can depend on getting rid of them. In some cases, we humans have gotten pretty creative in our attempts to eradicate the problem.

You’ve heard that dogs are basically furry toddlers, with cognitive abilities on par with a 2 year old human. But while that might make sense on some levels, the minds of distinct species can work very differently.