During long, cold winters in medieval Europe, church organs grew gray, sickly-looking circles that spread over their pipes. People back then believed that this was the work of the devil, but as it turns out, it’s just some pretty simple...

Microphones keep getting smaller and smaller, but have you ever asked what it would be like to have a bigger one in the form of a shirt? And though we tend to incorrectly think that we’re having two-way conversations with our pets, we...

Did you know that your body's fight-or-flight response to danger may, in part, come from inside your bones? Plus, another study suggests that vaping may impair to your ability to fight off lung infections.

If a tree falls into the forest and doesn't decompose, what happens to it?

Hank examines the zoological definition of monogamy, as well as some other breeding strategies that animals use.

If the 10 kilometer wide asteroid that hit the Earth 66 million years ago hit just a few minutes later, would the outcome of the living creatures here have been different?

Many people assume that fish are less intelligent than mammals, but it turns out that isn’t true at all - they are actually way smarter than you probably give them credit for.

It’s so easy to forgive a dog, especially when they start with those puppy dog eyes. As it turns out, those puppy dog eyes and the effect they have are no accident and the result of centuries of domestication.

Daffodils are cheerful symbols of spring… and also cold blooded killers. But it turns out, the poison in these plants may actually be helpful to us humans!

You know, it's probably best to just not put snow in your mouth regardless of color. Hosted by: Olivia Gordon ----------

Turns out humans aren't the only animals that can medicate themselves - many other animals have found ways to deal with illness by using natural remedies. Hank will tell you about some of the most interesting methods animals have found...

Fat cells don't often receive praise in everyday life, but they probably deserve more credit, as they might be healing our wounds.

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.

Hank's news this week informs us on a couple of crazy science experiments, updates us on some earlier topics (dangerous asteroids and ancient phallic rock art), and briefs us on a new study that seeks to find the evolutionary origins of...

In which Hank details the five scariest things that will likely happen because of climate change.

You aren't the only animal with a pantry! Hosted by: Michael Aranda

Hank explains the science behind the effects of that wackiest of weeds, cannabis sativa - aka marijuana.

You might not think about the food in your freezer much, but those frozen fries are surprisingly worthy of pondering, given that they’re the end result of a pretty clever innovation.

Fashion fads come and go—but did you know that some fashion trends are downright dangerous?

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

Why is it so hard for us to keep the bears out of our trash? Well, it turns out that trash cans are basically like giant food puzzles for the bears, and they are determined to win... But, we can use their wily trash-nabbing instincts...

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. Hosted by: Hank Green

How much is one living blue whale worth in the fight against climate change? A lot more than you may think, says financial economist Ralph Chami. He explains the value of bringing the language of dollars and cents to conservation -- and...

Scientist Saad Bhamla is on a mission to answer a question most people don't think to ask: How do insects pee? Taking inspiration from the incredible "butt flickers" of the glassy-winged sharpshooter, Bhamla presents a fascinating study...