Frogs (and amphibians in general) are in danger -- worldwide, nearly one-third of the world's amphibian species are on the verge of extinction. And yet, frogs contribute to our well-being in many important ways. Kerry M. Kriger describes...

For four billion years, what lived and died on earth depended on two principles: natural selection and random mutation. Then humans came along and changed everything - hybridizing plants, breeding animals, altering the environment and...

In this episode, Michael Aranda will help you empathize with your cat as we explore what happens when you swallow hair.

Whether in a good way or a bad way, Twitter bots use psychology to trick you.

In which Stan Muller subs for John Green and teaches you about energy and humanity. Today we discuss the ideas put forth by Alfred Crosby in his book, Children of the Sun. Historically, almost all of the energy that humans use has been...

Chimpanzees and bonobos may be very close to us humans on the tree of life, but one of our differences is the way we store fat. That difference comes down to types of fat cells and our DNA.

Remember that episode we did on Australia’s Pink Lake? Well, we have a follow-up! Hank explains in this episode of SciShow News.

Scientists report that humans might be quick to judge, but we we may have also evolved to be quick to forgive. And in another paper out this week, scientists have discovered a new type of human stem cell!

You may have thought that crocodile tears were just a figure of speech, but it turns out they're real, and may help those of us with dry eyes.

Sugar, honey, listen up. Humans love the sweet taste of sweetness, but have you ever wondered why? What's the evolutionary purpose behind our love for sweets? Why can we taste sweet anyway? What are those sugar substitutes really made...

Joe brings in a few friends to look at death in the animal kingdom.

Ah, romantic love; beautiful and intoxicating, heart-breaking and soul-crushing... often all at the same time! If romantic love has a purpose, neither science nor psychology has discovered it yet _ but over the course of history, some of...

This week on the show Dr. Lindsey Doe, host of Sexplanations, walks us through a history of cases that have altered our understanding of gender identity. Then Jessi from Animal Wonders joins the show with Kiki, a domestic cat.

When humans build a city, most species in the area tend to disappear. But there are some, called synurbic species, that are living their best lives in our concrete jungles.

Hank reveals two breakthroughs in the burgeoning science of xenotransplantation, the transplant of tissues across species. By the end of it, you'll want to hug your nearest pig!

In space we can finally get away from pesky flies landing in our drinks! But before we can live off-Earth full time, sending flies into orbit is helping us study how space affects our human hearts and immune systems.

It seems like every time scientists learn something new about sharks, people wonder whether this new information will finally show us how sharks will cure cancer. There’s no doubt about it, sharks are awesome, but is there a magic cure...

Google's fun new time-waster is actually a pretty advanced piece of Artificial Intelligence. And there's some (about 43%) good news about cement's carbon footprint this week!

When astronauts go into space, they're not always going alone.

Simpson's Paradox Part 2.



This video is about how to tell whether or not university admissions are biased using statistics: aka, it's about Simpson's Para

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Should we keep the outdoors out of hospitals? Ecologist and TED Fellow Jessica Green has found that mechanical ventilation does get rid of many types of microbes, but the wrong kinds: the ones left in the hospital are much more likely to...

Octopuses are smart! They play with toys, pull off daring escapes, and are masters of disguise. But they're also smart in a lot of ways that the human mind probably can't comprehend. For example, they basically have independent brains in...

You might think the white patches that grow on whale’s heads and faces are just weird skin growths, and you’re not wrong. But when you look closer, these patches are crawling with tiny stowaways!

SciShow delivers the latest in science news, including how fist-fighting fueled the evolution of the human face, new insights into the origin of schizophrenic "voices," and new research into the bird flu.