Some fish will never win any beauty pageants, but they still deserve our admiration, respect, and love, especially since their “ugly” traits are actually incredible examples of evolutionary innovation.

Do two people on the planet have the exact same number of body hairs? How about more than two? There's a simple yet powerful mathematical principle that can help you find out the answer. Kelsey Houston-Edwards breaks down the Pigeonhole...

It's 1950. Anti-communist sentiment in the United States is at an all-time high. Senator Joseph McCarthy claims he has a list of communists who are influencing government policy. He makes his first accusation without providing any...

A mountain separating two lakes. A room papered floor to ceiling with bridal satins. The lid of an immense snuffbox. These seemingly unrelated images take us on a tour of a sperm whale's head in Herman Melville's "Moby Dick." Though the...

Design legend Niels Diffrient talks about his life in industrial design (and the reason he became a designer instead of a jet pilot). He details his quest to completely rethink the office chair starting from one fundamental data set: the...

Zombies eat brains. They are also, like all of us, driven by brain functions. What is happening in their brains to make them act as they do? In this intriguing dialogue, Tim Verstynen & Bradley Voytek apply the various human medical...

Null results often get a bad rap, sometimes characterized as a study "finding nothing," but there's a lot we can learn from studies whose results fail to support their hypotheses.

The American Society of Clinical Oncology recently released an official statement about alcohol and cancer, but the information isn't as extreme as some headlines would imply. Also, scientists at Duke University have found evidence that...

This week on SciShow Talk Show Hank talks with Dr. Lindsey Doe about the female orgasm. Special guest Jessi Knudsen Castañeda brings Daisy, a curious Boa Constrictor.

In March 2009, North Korean soldiers captured journalist Euna Lee and her colleague Laura Ling while they were shooting a documentary on the border with China. The courts sentenced them to 12 years of hard labor, but American diplomats...

Digital public servant Amanda Renteria has seen that the millions of people who rely on government welfare services are often discouraged from seeking them out, frustrated by long lines and unnecessarily complicated processes. At Code...

After much debate, the realm has decided dragon jousting may not be the best way to choose its leaders, and has begun transitioning to democracy. Your company was hired to survey the citizens of the land and predict which candidate will...

How to Draw a Stick Figure

Musical innovator Andrew Bird winds together his trademark violin technique with xylophone, vocals and sophisticated electronic looping. Add in his uncanny ability to whistle anything, and he becomes a riveting one-man orchestra.

Scott Dinsmore quit a job that made him miserable, and spent the next four years wondering how to find work that was joyful and meaningful. He shares what he learned in this deceptively simple talk about finding out what matters to you —...

Poet, writer, activist Eve Ensler lived in her head. In this powerful talk from TEDWomen, she talks about her lifelong disconnection from her body -- and how two shocking events helped her to connect with the reality, the physicality of...

SciShow Space is one year old! And we’re celebrating by talking about new plans for a mission we told you about in our very first episode of SciShow News!

There are so many tiny, beautiful, funny, tragic moments in your life -- how are you going to remember them all? Director Cesar Kuriyama shoots one second of video every day as part of an ongoing project to collect all the special bits...

Swallowing pills to get medication is a quick, painless and often not entirely effective way of treating disease. A potentially better way? Lasers. In this passionate talk, TED Fellow Patience Mthunzi explains her idea to use lasers to...

Cross-country skier Janine Shepherd hoped for an Olympic medal -- until she was hit by a truck during a training bike ride. She shares a powerful story about the human potential for recovery. Her message: you are not your body, and...

Frustrated by not being able to sing two notes at the same time, musical inventor Beardyman built a machine to allow him to create loops and layers from just the sounds he makes with his voice. Given that he can effortlessly conjure the...

Unicorns may not exist on this planet, but Earth does have plenty of one-horned creatures that are just as remarkable, if not quite as majestic.

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The chances of you being hit by lightning are small by comparison, but it does happen! Hank will go through what ultimately happens when you are struck by lightning because chances are you will survive to tell it to your friends.

If you get most of your information about ancient animals from vintage cartoons or action figures, then a lot of things that you think of as "dinosaurs" actually weren't. Learn about the definition of true dinosaurs and the evolutionary...