This week, scientists have managed to make tear gland organoids that cry, and have also found a bunch of new genes involved in eye color!

There's a lot we don't understand about autism spectrum disorder, but this week scientists announced that they may have found a link between the disorder and elevated hormone levels.

On the genetic level, we're not all that different from chimps. But those small differences in DNA can have massive effects. Learn what makes us truly different from chimpanzees in this new episode of SciShow!

Hank brings us the story of Gregor Mendel, the Austrian monk who, with the help of a garden full of pea plants, discovered the fundamental properties of inheritance and paved the way for modern genetics. He also gives us the dirt on a...

Usually when you think of evolution or natural selection, you think of survival of the fittest. But sometimes, the resulting traits of evolution aren’t the most efficient solutions to the problems at hand. With the bar set to “good...

Science, while often the result of a stroke of genius, can just as easily be a stroke of extraordinarily good luck. Mendel’s work just happened to be a mix of the two.

Some online quizzes would have you believe the idea that certain people have a specific “personality type”. But is an “addictive personality” a real thing?

What will become of humanity after spend a few hundred years on Mars? What will happen after a few thousand? Evolution has, and still is, shaping humanity in rather drastic ways. How long will humans stop being human and become Martian?

Beetles are the most diverse group of complex organisms on Earth, making up over 20% of all named animal species. One in five species on this planet is...a beetle. How did one group of organisms get THAT massive?

Natural selection can lead to some pretty amazing adaptations, but sometimes the resulting traits aren’t the most efficient solutions to the problems at hand. With the bar set to “good enough,” here are some features that arose from...

On the genetic level, we're not all that different from chimps. But those small differences in DNA can have huge effects.

If men can't nurse, then why do they have nipples? The answer has less to do with evolution and more to do with your personal development as a teeny tiny embryo. Short version: We're all girls -- at least at first. Hank explains!

Hank squares off against the host of SciShow Kids, Jessi Knudsen Castaneda, to match wits about chemistry, evolution, and how babies are weird!

You know that little pink thing nestled in the corner of your eye? It's actually the remnant of a third eyelid. In humans, it's vestigial, meaning it no longer serves its original purpose. There are several other vestigial structures in...

Why do we love people we're related to? Compared to strangers, why do we feel such a deep sense of connection with our family members? Sure, they're nice to us, we take care of each other, and we often live with them, but there has to be...

Some of the biggest evolution questions finally answered.

This week, researchers reveal the single most important influence on music since 1960. Also, turns out that sleepwalking and sleep terrors are genetically linked.

Hank goes head-to-head with the Brain Scoop’s Emily Graslie to match wits about springs, hoaxes, and human evolution!

Seeing their meat as a protein source and their poop as the perfect fertilizer, humans brought pigeons into captivity as far back as 10,000 years ago. As we carried pigeons around the world, they formed the wild urban flocks we're...

Today on SciShow we bring you a cool humanoid diving robot and insight into the evolution of the venus flytrap.

Hank delves into the scientific reasons behind why we are attracted to the people we're attracted to. It's complicated.

This week, scientists have managed to make tear gland organoids that cry, and have also found a bunch of new genes involved in eye color!

All 12 days in ONE video!

Discover natural selection as a mechanism of evolution with the Amoeba Sisters. This video also uncovers the relationship of natural selection and antibiotic resistance in bacteria and emphasizes biological fitness. Note: This video is...