We've all heard the rumor that certain foods provides less calories than it takes to digest. Is this true? Check out this SciShow Quick Question to find out!

For thousands of years, a sea creature has plagued sailors by attacking and devouring their ships. It is so destructive that reportedly it swiss-cheesed the hulls of Christopher Columbus’s ships, sinking at least two of them.

Hank tells us how some gamers are outperforming sophisticated computer programs to help solve the puzzle of protein folding and to assist scientists in finding better treatments for HIV/AIDS, cancer, and Alzheimer's.

Jessi and Squeaks want to learn about what (and how) owls eat! Time to experiment!

There's a lot we don't know about how and when dogs were first domesticated. But we do know that the process made dogs very different from their wild cousins, in some unexpected ways.

Animals have a lot of ways to avoid becoming dinner, but one particular beetle can get eaten, and just, well let's just say it's going to be alright in the end.

If you weighed 99 lbs, and ate 1 lbs of nachos, would that make you 1% nacho? Hank attempts to answer this question with a series of deeper questions on this episode of SciShow quick questions.

A complete microbiome lives inside us, and believe it or not, that's a good thing.

It may have happened when you locked eyes with your secret crush, or before an important job interview, but what exactly caused that strange, fluttering sensation in your stomach?

Hundreds of ant species have been farming for tens of millions of years.

Got milk? Fact is, most people don't -- and shouldn't -- because for them, ice cream and milkshakes are basically toxic. So why can some people drink milk and survive? Turns out they're mutants! SciShow explains.

Gluten is a sticky protein composite found in cereal grains. Hank gives us some insight into the importance of gluten in history, as well as its impact on health in our own time.

One of the most commonly googled questions in the world is why feces can be green. Well, Quick Questions has the answer!

Not all animals have a mouth, or even need one to eat! These different feeding strategies can teach us a lot about our ancestors and how they went from not needing a mouth at all to only eating with one.

The SciShow Talk Show has a new look! And a new guest who isn't new at all - Jessi Knudsen Castañeda from Animal Wonders joins Hank to talk about one of her favorite subjects: poop! They are joined by Augusto Castañeda and Yucca the...

Paul Andersen starts with a brief description of feeding methods. He then details all of the major parts within the human digestive system. This tour starts in the mouth, move down the esophagus, through the stomach, small investing,...

Everybody does it! But why does it happen? Jessi gives you a look at your digestive system, to discover why we sometimes get a case of the burps.

Mmmm! The smell of a batch of cookies straight out of the oven is enough to make your mouth water! But have you ever wondered why your mouth waters?! Jessi and Squeaks are here to tell you all about saliva and the many ways it helps you...

Some of the animals you think of as just cute grass-eating creatures might actually be more interested in chomping on your meaty bones.

These fun looking sea slugs have a few unique features, not the least of which is the fact that they defend themselves by smelling like watermelon candies.

Hank talks about the molecules that make up every living thing - carbohydrates, lipids, and proteins - and how we find them in our environment and in the food that we eat.

In the African grasslands, a gazelle suffering from tuberculosis takes its last breath. The animal's corpse threatens to infect the water, but for the vulture, this isn't a problem: it's a feast. With a stomach of steel that can digest...

Sloths might be slow and spend much of their time sleeping, but they’re definitely not boring. Jessi shares three weird facts about sloths!

The name of the order Carnivora means "meat-eaters," and while most of the members of Carnivora live up to that name, there is at least one cute and curious exception.