Daniel Tammet has linguistic, numerical and visual synesthesia -- meaning that his perception of words, numbers and colors are woven together into a new way of perceiving and understanding the world. The author of "Born on a Blue Day,"...

When you see a black cat, you might think of witches and goth bands, but they're also a great example of a melanistic animal, and they're not the only ones! Chapters MELANISTIC ANIMAL 0:24 PYGMY GRASSHOPPERS 0:48 BLACK PANTHERS 1:53...

It's time for the glitz and the glamour of big motion pictures that helped keep American spirits up during and after the Great Depression. Sound was a huge change to motion pictures, but there were still a few technological innovations...

Ever wonder what it looks like from a birds-eye-view? Hank explains they see more than you think!

If you look closely enough, you'll see the night sky is actually a little green. SciShow Space explains the science behind the phenomenon known as airglow.

You look really pretty, but what are you actually putting all over your face?

What happens in your body after you get a bruise? Quick Questions explains!

Their signature black and white color scheme is part of what makes pandas instantly recognizable - but not many mammals are black and white, so... why do they look like that?

Have you ever noticed that sunlight makes colors fade? Join Quick Questions as we explore why that happens.

Have you ever wondered why leaves are green and not red, blue, or even black? We did too!

Squeaks and Jessi are spending the day making art and revisiting some videos to help them remember all the different ways they can do it!

There have been remarkable advances in understanding the brain, but how do you actually study the neurons inside it? Using gorgeous imagery, neuroscientist and TED Fellow Carl Schoonover shows the tools that let us see inside our brains.

Hank's friend from grad school, Bryan von Lossberg recounts his time working on NASA's Mars Pathfinder mission, and Jessi from Animal Wonders surprises us with Goma the red eyed tree frog!

One of the most amazing facts in physics is that everything in the universe, from light to electrons to atoms, behaves like both a particle and a wave at the same time. But how did physicists arrive at this mind-boggling conclusion? Chad...

The pigments in our food all get destroyed on their way through our digestive system...so where do the colours of our poop and pee come from?

In war we often see only the frontline stories of soldiers and combat. AT TEDGlobal 2010, Zainab Salbi tells powerful "backline" stories of women who keep everyday life going during conflicts, and calls for women to have a place at the...

Different dogs look incredibly different - but that doesn't mean they are necessarily more diverse.

This week in space news, a new makeover for one of the Hubble Telescope's most famous images, and tips on spotting Comet Lovejoy in the night sky.

Have you ever wanted to make a painting but you've run out of paint? Learn how you can make your own watercolors with Jessi and Squeaks!

Plants, animals, or minerals found in nature bear almost every color imaginable. There are two factors that influence what hues you see in the wild: physics and evolution. So, which colors are you least likely to see in the natural...

The furthest extremes of light refraction phenomena.

The leaves are falling from the trees and the air is getting chilly where Jessi and Squeaks live, which can only mean one thing: it's fall! And to celebrate the season, they've put together a bunch of videos about all the fun things you...

Some aquarium hobbyists will pay $10,000 or more for a single shrimp because of the rarity of their colors or patterns.

Penguins are infamous for being ready for any formal event, yet it seems that we're still unsure why they, and numerous animals have this distinct color contrast.