How did the "false horse," Thoatherium, and its relatives survive when their hoofed legs seemed to be adapted for an ecosystem that wouldn't exist for another 12 million years?

Today, all mammals from humans to bats have five fingers or fewer. Yes, even whales, whose finger bones are hidden in their fins. Birds have four or fewer and amphibians get the best of both worlds, often having four digits on their...

How do they do it? Penguins standing on ice, not only for days, but their whole lives! And their feet don’t hurt like ours would. It has something to do with blood and an amazing twist that penguins have developed.

Why do your fingers and toes get wrinkly when they’ve been in the water too long? Short answer: Your nerves. Longer answer: Evolution.

The ancestors of modern horses became so successful that they spread all over the world, to Europe, Asia, South America, and Africa. But in their native range of North America, they'll vanish for 10,000 years. Until another strange...

SciShow News explains the latest climate weirdness, and why the Global Warming Hiatus wasn’t really what it sounded like. Plus, see how humans have harnessed the climbing power of the gecko!

Geckos aren't covered in adhesives or hooks or suction cups, and yet they can effortlessly scale vertical walls and hang from ceilings. What's going on? Eleanor Nelsen explains how geckos' phenomenal feet allow them to defy gravity.

How do they do it? Penguins standing on ice, not only for days, but their whole lives! And their feet don’t hurt like ours would. It has something to do with blood and an amazing twist that penguins have developed.

Did you know you have useful tools right at your fingertips? That's right: your fingernails! Jessi and Squeaks learn why fingernails are so important!

Have you ever noticed that your fingers and toes are all wrinkly and funny looking after you spend a lot of time in the water? Well, Jessi wants to know why that happens! Join her to find out the answer!

Biologist Robert Full studies the amazing gecko, with its supersticky feet and tenacious climbing skill. But high-speed footage reveals that the gecko's tail harbors perhaps the most surprising talents of all.

You can probably tell someone the purpose of most of your body parts. But what about earwax? Or your appendix? If you’re looking for those answers, or wondering why you have a butt, pop a squat to find out about weird human attributes.

Why do your fingers and toes get wrinkly when they've been in the water too long? Short answer: Your nerves. Longer answer: Evolution.

Your body is made of cells -- but how does a single cell know to become part of your nose, instead of your toes? The answer is in your body's instruction book: DNA. Joe Hanson compares DNA to detailed manual for building a person out of...

From turf toe to toxic Zamboni's, sports injuries aren't just for pro athletes.

Genetics are extremely complicated—so complicated that having an extra finger or toe, for example, is exceedingly rare despite it being caused by a dominant gene.

In this talk from TED University 2009, veteran rock climber Matthew Childs shares nine pointers for rock climbing. These handy tips bear on an effective life at sea level, too.

Get ready to groove with our "Let's Move Song"! Perfect for kids, this catchy tune will spark your energy and teach you all about the wonders of staying active and having fun.

Eddie in Bed Poem

How to Burn Calories at the Supermarket

Howcast - The balance beam is a gymnastics standby. It requires skill, control, and focus to master, but most anyone can learn the basics.

Howcast - Learn how to do a firefly spin from pole dancing instructor Mai Yee in this Howcast video.

Howcast - Learn how to do the b-boy dance move the worm in this Howcast breakdancing tutorial with choreographer Victor "Kid Glyde" Alicea.

Howcast - Learn how to shuffle on the dance floor in this Howcast club dancing video with expert Tweetie.