Escape was one of the many ways that enslaved people resisted their captivity in the system of American slavery. The Underground Railroad was not literally a railroad. It was a network of people, routes, and safe houses that helped...

To humans, drool can seem pretty disgusting, but other animals use saliva in surprising ways. Here are some of the weirdest ways other animals use their spit to survive!

You might have wondered why bumblebees stop for a moment to stare at the flower they were just interacted with. Are they cherishing all the good times they had together, or is this behavior serving a biological purpose?

Ancient trees are fascinating, but the answer to the question in the title isn't as cut and dried as it might first seem. There are two major contenders for the superlative, and Hank has all the important information on both of them in...

We aren’t the only animals that pass gas, but other animals have found some much more creative ways to harness the power of their farts!

Cha
pters

View all
SONOR
AN CORAL
SNAKESr/> 0
:45
...

In 19th century Europe, with nation building well under way, thoughts turned outward, toward empire. This week, we're looking at how Europeans expanded into Africa, Asia, and Oceania during the 1800s. You'll learn about China and the...

It sounds like science fiction, but journalist Stephen Petranek considers it fact: within 20 years, humans will live on Mars. In this provocative talk, Petranek makes the case that humans will become a spacefaring species and describes...

Humans have been using microbes to separate minerals from mud since the middle of the last century, so we know biomining works on earth. But how will these tiny miners work in microgravity?

We are in spring! And with spring come bees! In this episode of SciShow Compilation we bring the best episodes of bees and honey!

Honey bees may be small, but they manage to survive some pretty big disasters. Whether it’s hurricanes, wildfires, or even volcanoes, honey bees seem to have a plan for everything.

After World War II, Europe was changing radically, and its place in the world was changing as well. European powers had colonized around the world in the 18th and 19th centuries, and in the 20th century, it all came crashing down. Of...

Slime can be great, but when it's the wrong kind of slime (you know, the kind that can kill you?), it gets added to the list of things Hank wishes he didn't have to worry about. Scientists call it biofilm, and it's a type of bacterial...

Mushrooms can be pretty weird! Some have the power to trick animals into caring for them, appear to bleed, or even clean up radiation!

Cha
pters
SCLEROTIA Credi
t: Tocek
as
0:59

EGG-MIMI
CKING...

Ideas like liberty, freedom, and self-determination were hot stuff in the late 18th century, as evidenced by our recent revolutionary videos. Although freedom was breaking out all over, many of the societies that were touting these ideas...

Scientists have learned more about why royal jelly makes queen bees, and we peek at the tiny and terrifying mandibles of trap-jaw ants.

Hank is all about Mars, and Elon Musk, the founder of SpaceX, has some plans for colonizing the Red Planet that have got Hank very excited.

You've probably heard about the sudden and mysterious drop in honey bee populations throughout the U.S.A. and Europe. Beekeepers used to report average losses in their worker bees of about 5-10% a year, but starting around 2006, that...

Bees, wild and domesticated, are in big trouble. Bee colonies are dying off at alarming rates, and the cause isn't clear. Pesticides, habitat loss, disease, there's a laundry list of likely culprits. We rely on these tiny pollinators for...

In the middle of the 19th century, a scientist stared into the microscope and found, staring back at him, a vampire.

Naked mole-rats are not keeping their weirdness on the inside. And all their superficial strangeness—the distinctive look, the complex underground society, even the strategic poop-eating—is just the tip of the weird iceberg.

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

Predators play a crucial role in maintaining the balance of marine ecosystems by controlling the populations of prey species. By preying on...

Howcast - Learn how to identify termites in this Howcast pest control video with expert Jeff White.

Howcast - Meet the new crew of the Normandy SR2 with Jane Shepard in this walkthrough for Bioware's new release, Mass Effect 3.

Howcast - Find out if there has ever been a zombie outbreak in this Howcast video about how to survive a zombie attack.