From the long extinct Stegosaurus, to tiny modern mice, all sorts of animals grow bits of bones inside their skin. These structures are called osteoderms, and they're often more than just a suit of armor.

The concept of warm-blooded and cold-blooded animals is outdated because there are actually tons of different animal thermoregulation strategies.

Methuselah’s environment lacks nutrients, water, and oxygen. In other words, it’s the perfect place to grow very very old.

What if you couldn’t remember anything past 30 seconds? Let us introduce you to a man named Henry Molaison who was diagnosed with anterograde amnesia. He couldn’t form new memories.

Scientists know that genetic factors can explain many of autism’s features - but have autism researchers been looking for those features in the wrong DNA? A new study uses A.I. to uncover changes linked to autism in the stretches of non...

If salty water is constantly spilling into the world’s oceans, does that mean they are getting saltier by the day?

Making a faster plane takes more than building better engines and structures. To go supersonic, engineers had to solve hundreds of problems -- including ditching one of the biggest assumptions in aerodynamics!

We know these glaciers are already on the way out, so we need to find out whether we can bulk them back up again. For that, we turn to the glaciers’ past – and a lot of penguin bones.

This week, researches published a genetic analysis of the 11,500-year-old remains of a baby found in Alaska, near where the first Americans crossed the Bering land bridge. That analysis has answered some lingering questions about human...

Nearly fifteen percent of the world's population lives with a disability, yet this massive chunk of humanity is still routinely excluded from opportunities. Sharing her experience growing up with an autistic sister, disability inclusion...

Scientists know that genetic factors can explain many of autism’s features - but have autism researchers been looking for those features in the wrong DNA? A new study uses A.I. to uncover changes linked to autism in the stretches of non...

In this video Paul Andersen explains how the amplitude of a wave is a measure of the energy of the wave. He gives several examples of wave amplitude and shows you how to calculate the wave of a transverse and longitudinal wave.

You may have heard about a study where researchers were able to grow lumps of neural tissue that showed measurable activity – a little bit like an actual brain. Are scientists trying to grow artificial brains, and if so, what kind of...

For a long time, scientists considered the neocortex the brainiest part of the human brain – an obvious candidate for the thing that makes us unique. But in some ways, it’s not that different from other mammals’ brains. So researchers...

In 1986, a prospecting crew in southern Romania was looking for a good place to build a geothermal power plant, when they accidentally discovered one of the oddest caves of all...

It's easy to assume a cat's coat pattern is based exclusively on genetics, but that isn't entirely the case for Siamese cats. Their unique coloration comes from a combination of genetics, a fragile enzyme, and losing heat from little...

Earthquakes have always been a terrifying phenomenon, and they've become more deadly as our cities have grown - with collapsing buildings posing one of the largest risks. But why do buildings collapse in an earthquake? And how can it be...

We begin our unit on ethics with a look at metaethics. Hank explains three forms of moral realism – moral absolutism, and cultural relativism, including the difference between descriptive and normative cultural relativism – and moral...

Why do we sleep? We spend a third of our lives in slumber, but science has yet to determine exactly why we have do it. Here's a look at how sleep works, why we're not getting enough sleep, what happens if you DON'T sleep, and an idea...

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...

Poop can be pretty gross, but newborn poop is in a league of its own! We can learn a lot from a baby’s first poop, which forms before it's even had its first meal.

You might expect to find these fish at the core of an ancient, distant asteroid, but we find them instead on Earth. That doesn’t mean they aren’t special, though. In fact, their immune systems may be the key to unlocking a new treatment...

SciShow heads to Washington D.C. to join the March for Science and interview people about why they feel science is important to them.

In a dystopian world, your resistance group is humanity's last hope. Unfortunately, you've all been captured by the tyrannical rulers and brought to the ancient coliseum for their deadly entertainment. Will you be able to solve the...