Did you know that your environment and lived experiences can actually affect your DNA? Welcome to the world of epigenetics! In this fun episode of SciShow, Hank & his clone Circus Hank explain the power of epigenetics, which studies the...

It turns out life may have gotten its start pretty early in Earth's history, and while the first couple billion years saw several important developments, the period was still dominated by very simple life forms. This is our first...

Welcome to the romantic, violent, treacherous, and murderous mating lives of bugs.

The group of bacteria known as Chlamydiae doesn't do much to endear itself to us since these bacteria can cause a variety of illnesses. But it turns out that we may have Chlamydiae to thank for life as we know it!

Charles Darwin had a great mind, but a not-so great body. Scientists have spent years trying to uncover the mysteries of his poor health.

SciShow explores a newly identified neurological condition, aphantasia, the inability to visualize things in your imagination, and gives tribute to Dr. Oliver Sacks, popular explorer of the human mind.

New evidence suggests some fossils as the oldest known sign of life on Earth, and scientists may have a way to speed up the process of carbon neutralization in the ocean!

Ever wonder what it'd be like to have a whale as a house? Wonder no more after you watch this episode of SciShow! Hosted by: Michael Aranda

When it comes to mass extinctions, you probably imagine giant volcanic eruptions or asteroids raining fire from the sky, but sometimes these events can have some unexpected causes. Hosted by: Michael Aranda

You would think that almost everyone has the same exact number of bones in their body, but that number is different, and changing, in everyone!

Lizards tend to scurry around in short bursts rather than running long distances, and the reason why might be nearly as old as life on land. Hosted by: Stefan Chin

How do they do it? Penguins standing on ice, not only for days, but their whole lives! And their feet don’t hurt like ours would. It has something to do with blood and an amazing twist that penguins have developed.

We often think of categories as fixed, with a species being a species no matter what. The thing is, life doesn’t have to follow our rules.

Why do we prioritize human rights over those of other species? Philosopher Peter Singer dives into what he calls "speciesism," the root of the widely ignored mistreatment of animals around the world, from factory farms to product-testing...

In a practical, playful talk, leadership visionary Anne Morriss reinvents the playbook for how to lead through change -- with a radical, one-week plan to build trust and fix problems by following a step per day.

Lots of people talk about the need to be physically fit, but mentally fit? Not as much. In a powerful talk, mental health advocate Gus Worland shares how an experience of deep grief from his own life sparked his mission to advocate for...

Neurodiversity and innovation often go hand in hand, but does that mean visionary entrepreneurs get a free pass to say and do anything they want? Bonobos founder and mental health advocate Andy Dunn shares his experience navigating...

Sal Khan, the founder and CEO of Khan Academy, thinks artificial intelligence could spark the greatest positive transformation education has ever seen. He shares the opportunities he sees for students and educators to collaborate with AI...

Nadya Tolokonnikova, founding member of the anti-Putin resistance group Pussy Riot, was named a top enemy of Russia for speaking out against Vladimir Putin's dictatorship throughout the last decade. In this inspiring talk, she tells the...

She was the Queen of France, notorious for living in opulence while peasants starved and became a symbol of everything wrong with monarchy. But was Marie Antionette a heartless, wasteful queen, or a convenient scapegoat in turbulent...

Is it possible that this century is the most important one in human history? The 21st century has already proven to be a period of rapid growth. We're on the cusp of developing new technologies that could entirely change the way people...

In this poetic and moving reflection, actor, musician and activist Golshifteh Farahani honors those who have fought for "Woman, Life, Freedom" following Mahsa Amini's death at the hands of Iran's religious morality police. Calling upon...

Keenan Scott Il's passion for words, stories and superheroes fueled his journey to becoming a celebrated playwright, producer, director and actor. Showing how language can illuminate the superhero in all of us, Scott performs three...

The Irish Renaissance in the early 20th century included a wealth of new plays written both in Ireland, and by Irish ex-patriots elsewhere. W.B. Yeats, Lady Augusta Gregory, and J.M. Synge were creating a new national theater of Ireland...