The nara melon is as juicy as any other, so how is it able to grow in the hyper-arid Namib desert?

We have lots in common with our closest primate relatives. But comparatively, humans seem a bit... underdressed. Instead of thick fur covering our bodies, many of us mainly have hair on top of our heads— and a few other places. So, how...

It's a beautiful day, so Squeaks is going to go on a hike! And he's bringing his trusty field journal so he can take notes on all of the plants and animals he sees along the way!

Most of us love flowers for how good they smell! But did you know some flowers are actually pretty stinky? Join Jessi and Squeaks to learn all about Trudy: The World's Smelliest Flower!

The elephant is a creature of epic proportions -- and yet, it owes its enormity to more than 1,000 trillion microscopic cells. And on the epically small end of things, there are likely millions of unicellular species, yet there are very...

The nara melon is as juicy as any other, so how is it able to grow in the hyper-arid Namib desert?

Hank shares the week in science news, including the top 10 new species discovered in 2014, and the start of construction of the first fusion reactor. It's gonna be big!

Hair can be so many different colors, but why do so many adults have gray hair?

The Ecology of Superheroes

Bison are magnificent! Join Jessi and Squeaks and learn all about America's National Mammal.

The ocean is full of some amazing creatures, but one that remains a bit of a mystery is the Narwhal, which looks like an underwater unicorn.

Whether you’ve got a lot of hair or absolutely none, it’s one of those things all of us have thought about at some point. And we’ve ended up with some… questions.

Not all hardwood trees have hard wood and softwoods soft wood, because these terms denote their taxonomic ancestry, not the wood's actual hardness.

All mammals have hair at some point in their lives, but none of them wear it quite like humans. Why does our hair grow where it does, and not grow where it doesn't? How does our hair get its color? And why does it go gray and often fall...

Explore the cell cycle with the Amoeba Sisters and an important example of when it is not controlled: cancer. Table of Contents: 00:00 Intro 1:00 Cell Growth and Cell Reproduction 1:42 Cancer (explaining uncontrolled cell growth) 3:27...

Join Hank Green to learn ten weird, scary, and amazing things fungi can do!

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The hair on your scalp can get really long, but your leg hair doesn't sweep the floor. Why not?

Plants are AMAZING! Join Squeaks and Mister Brown as they talk about the adventures they've had in the fort's garden, and beyond!

What makes crystals grow into their signature shapes? Dig into the atomic patterns and unique properties of crystals. -- Many crystals have signature shapes— like the cascade of pointed quartz or a pile of galena cubes. Every...

Join Jessi this week at the fort and learn about the unexpectedly awesome organism that's made up of two living things: LICHEN!

This video explains how to identify a theme in a short story.

Why Don't Women Have Adam's Apples?

Howcast - Learn how long and how often you should meditate from yoga instructor Lisa Dawn Angerame in this Howcast video.

Howcast - Learn about the development of pubic hair, body hair, and facial hair from Jennifer Wider, M.D. in this Howcast video.