It's Okay to Be Smart: Is Sugar A Drug?

We all need to do it! Learn why we all should brush our teeth, and how brushing keeps our teeth strong and healthy!

Did you ever have a delicious looking apple in your hands and bite in only to find it all grainy and sad? It's not the fruit's fault, and there might be something you can do about it!

Seedless watermelons are basically the best thing ever. But they’re also a delicious paradox. Seeds are a key part of plant reproduction. So how do you breed a plant that doesn’t make any seeds?

Have you ever pretended to be something else? Some animals do too! Learn how animals use mimicry to keep safe, or to sneak a snack!

Malaria is a global disease that we've beaten back around the world, including in some tropical places, but we’ve had the hardest time in...

Jessi and Squeaks learn about plants with defensive weapons!

"You're a fishmonger!" By taking a closer look at Shakespeare's words--specifically his insults--we see why he is known as a master playwright whose works transcend time and appeal to audiences all over the world.

Rikki Tikki Tavi is found by Teddy and his family. He learns to live with the humans, and finds out about the evil cobras Nag and Nagaina.

Did we just find a slimy alien?! Mark and the crew are deep in the mudflats of Maine, searching for a massive Bloodworm for the Bite-Sting Index when they suddenly come face-to-face with the giant Milky Ribbon Worm!

Join Mark in the first-ever Brave Wilderness adventure to the Middle East in search of the rare Giant Arabian Death Stalker scorpion!

In this heart-pounding episode of Brave Wilderness, Coyote Peterson travels deep into Phetchaburi, Thailand, where a lawn has become a living minefield of venomous blue tarantula burrows. Before he even attempts to handle one of these...

We’re back again with another episode on climate change and human health. The effects of a warming planet on our wellbeing are multifaceted, and there’s a lot to address in these complex interactions. One of those things is an increase...

Watch as Mark surprisingly finds then gets slashed and stung by the world's biggest scorpion: the Giant Asian Forest Scorpion! Where will it land on the Brave Wilderness Bite-Sting Index? How will the pain compare to all the other...

Watch as Mark counts down the WORST spiders you could be bitten by on Earth! Surprisly, some of the venomous spiders on this list, could easily be in your own home! Watch to find out which ones!

On this episode, Coyote is joined by the one and only Lexie Limitless to track down, safely catch and place a GPS tracker on a MASSIVE American Alligator. This GPS tag will provide invaluable data for the team of amazing experts from the...

Welcome back to Bizarre Beasts: Season Zero, where we are remastering episodes of Bizarre Beasts that were originally created for Vlogbrothers. This episode, Hickory Horned Devils and Regal Moths! Meet the little critter with...

Science Kids Ocean Predators - Killer Whales, Great White Sharks, Piranhas and More!

The great white shark, a solitary and formidable predator of the ocean, boasts impressive physical attributes and hunting capabilities. With its...

Blueberries: The Antioxidant Powerhouse

Howcast - Learn about biting insects in the home in this Howcast pest control video with expert Jeff White.

Howcast - Learn how to stop clenching and grinding teeth from Shane Methal DDS in this Howcast video.

Howcast - Learn how to ask a girl out from dating coach Rachel DeAlto in this dating tips for guys video from Howcast. Thumbnail: Roe Utena/Flickr

Howcast - Learn how to do the rotation on the point foot reflexology technique from certified reflexologist Chantel C. Lucier in this Howcast video.

Howcast - Learn how to read a person's lips in this body language video from Howcast.