Like HowStuffWorks on Facebook!

poop

Top 10 Mind-Blowers: Human Butts

 Top 10 Mind-Blowers: Human Butts

Let's explore the science and psychology of butts... See more »

Dung Beetle Mania!

 Dung Beetle Mania!

Find out how and why dung beetles have been capitalizing on poop in a big way for 30 million years. Also, these little guys may be the world's tiniest astronomers. Robert and Julie reveal why. See more »

Fecal Transplants and You

 Fecal Transplants and You

What if you were suffering from a debilitating bacterial infection and you found out that pumping someone else's fecal matter into your rectum could vanquish it. Find out about fecal microbiota transfers and why we might one day seek out "artisanal" poop samples to cure what ails us. See more »

Monster of the Week: Ghoulies

 Monster of the Week: Ghoulies

Robert explains the nature of ghoulies and how humans evolved to poop when and where they want. See more »

The Status of Flatus

 The Status of Flatus

What is a fart? What’s the science behind passing gas and why does volume, frequency and stench vary so much from person to person? Answers await, gentle listener, as Robert and Julie discuss the biology behind breaking wind. See more »

From Nose to Tail: The Colon

 From Nose to Tail: The Colon

Finally, everything comes out in the end – which is to say it comes out of the end. Robert and Julie finish up their digestive journey with discussions of colon science, nutrient enemas, prison wallets and other astounding things. See more »

Pooping live garden slugs? Call Science

 Pooping live garden slugs? Call Science

One 19th century doctor set out to convince people they weren't pooping live slugs and lizards. Read this science post from Robert Lamb to learn the details. See more »

 Cognitive Sewage: All Water Has Been Pooped In

You know how it goes. NASA creates an amazing new water filtration system and the headline winds up reading "Astronauts Drink Recycled Urine, and Celebrate." Try as we might, we just can't think about that fresh glass of filtered space water without slapping a mental "WARNING: PEE-PEE" label on it. No matter how much we purify it, we can't quite eliminate the cognitive sewage -- which is rather unfortunate given the looming world drinking water shortage. See more »

 Blow Your Mind: The Pooping Duck or When Robots Digest

Step right up and behold a marvel of 18th century robotics! See the Jacques de Vaucanson's fabulous digesting duck, the clockwork miracle capable of reproducing the biological miracles of ingestion, digestion and defecation! In this episode of Stuff to Blow Your Mind, Julie and I dive into the history books for more on how the pooping duck may have worked and just what it's creator was thinking. Plus, you'll learn about the nightmarish cloaca bot. See more »

 The Pooping Duck: Marvel of 18th Century Robotics

Radiolab's recent "A Clockwork Miracle" episode concerns a sixteenth-century mechanical monk, but Jad also briefly mentions the wonders of a robotic pooping duck from the 1700s. Yep, you read that right: a centuries-old automaton designed to digest food and poop it out like a duck. The fabulous digesting duck was the handiwork of Jacques de Vaucanson, a French engineer who excelled in the creation of automatons -- specifically "philosophical toys" (curios that combined science and amusement) composed of clockwork gears and moving parts. Here are just two of his creations leading up to the duck: See more »