You can dye your hair, you can get a tan, but the color of your eyes is pretty much set in stone - or is it? From weird diseases to temper flare-ups and even iris implants, here are just a few ways that your eye color might not be so...

Plants can tell when competitors are nearby because they can see them.

While many researchers are focusing on finding a difference in brains of people with dyslexia, some new research suggests it might not just be in their brains, but in their eyes.

A spy presses a button on their suit and blinks out of sight. A wizard wraps himself in a cloak and disappears. A star pilot flicks a switch, and their ship vanishes into space. Invisibility is one of the most tantalizing powers in...

In the 1600s, Isaac Newton conducted a series of experiments to better understand the lights and colors that sometimes appear when your eyes are closed. If you’ve ever sat around an evening campfire or unintentionally glanced at the Sun,...

Why is the Sun Yellow and the Sky Blue

Why are Stars Star-Shaped

How to See Without Glasses

Biomedical researcher Sonia Vallabh's life was turned upside down when she learned she had the genetic mutation for a rare and fatal illness, prion disease, that could strike at any time. Thirteen years later, her search for a cure has...

It feels like for an animal, having one's butt fall off would be pretty bad. But apparently that's not always the worst thing to happen, at least not for these specific animals.

Do new traits in evolution happen slowly, or all at once? Two new studies in the journal Science may finally help us solve this mystery.

Your optometrist can tell you if you're at risk for cardiovascular disease, Alzheimer's, or diabetes. And it's all thanks to James Bond-style retinal scanners.

Whether you grew up with a poster of the solar system on your bedroom wall or not, you've probably got a specific idea of what the planets look like. From brilliantly blue Neptune to the "red planet" Mars. But if you managed to actually...

Prosopometamorphopsia is an extremely rare disorder of facial processing that makes other people's faces look demonic or seem to melt. But in the process of treating these people, we can also learn how our brain understands what a face...

Your agent has infiltrated a life or death poker game in a hidden back room of a grand casino. Your team is on the trail of an elite society of assassins, each of whom carries a signature playing card corresponding to their role—...

Computer models of climate change have long predicted that the ocean would turn green as a result of warming. But the change can't be seen by the human eye, so scientists weren't sure how they'd measure this effect... until it turned...

For decades, scientists believed dinosaurs were diurnal and tiny mammals were nocturnal. But as researchers have uncovered more mammalian fossils and studied the biology of different dinosaur species, they’ve found some surprising results.

Why do spiders have 8 eyes? It’s a seemingly simple question with a surprisingly complex answer. We’ll be hanging out with some jumping spiders (the cutest of all spiders) and some jumping spider researchers to investigate how a...

Comic book heroes ain't got nothin' on evolution.

The eyes are often the first thing we see when we look at someone. And when you look at them up close, everyone’s eye color is a kaleidoscope of shapes and hues. How does eye color work? The answer involves some very cool physics, and...

We’ve all gotten dizzy before… but have you ever gotten WEIRD DIZZY? I teamed up with Vanessa Hill from BrainCrat to answer the question “why do we get dizzy?” and in the process we learned about some very strange and hilarious ways to...

Reading. You’re doing it right now. I bet you don’t even have to think about it. But have you ever wondered what’s happening in your brain to turn all these weird symbols into meaning? This video will teach you how to read all over...

If you were taking an engineering class in school and you turned in the human body for your final exam… you would get like, a C+. Or maybe a B- at best. That’s because the human body is full of design flaws. Except they aren’t really...

Artist Ersin Han Ersin invites us to step inside a giant sequoia tree, peering through the bark into the tapestry of life within. Discover how his multisensory installations explore the concept of "umwelt," or the unique sensory...