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Mystery Sound extravaganza!

Credit: cotaro70s/flickr
Credit: cotaro70s/flickr

  OMG, this is the episode you’ve been waiting for… an all-out, wall-to-wall, super-duper Mystery Sound show. Guess the sounds sent in from listeners and scientists alike. Plus, if you like having fun (and dancing), stick around to the end of the episode. An extra-special audio treat awaits. Shhhhhhhhhh!

Spider sense

8-legged beauty (courtesy: Axel Naud/flickr)
8-legged beauty (courtesy: Axel Naud/flickr)

Because spiders are your friends!!!!!!!!!!

Why are no two snowflakes the same?

A sampler of snowflakes photographed by Ken Libbrecht. They're not all stars. (Photo courtesy Ken Libbrecht)
A sampler of snowflakes photographed by Ken Libbrecht. They're not all stars. (Photo courtesy Ken Libbrecht)

In this episode, Dr. Ken Libbrecht answers all of our snowflake questions: How are snowflakes made? Why are they different shapes? How is it that they’re all unique? And how does a scientist who lives in southern California study snow?

The science of baking

A loaf of bread dough rises.  (Jennifer Simonson | MPR News)
A loaf of bread dough rises. (Jennifer Simonson | MPR News)

Baking can seem kind of magical. You take a bunch of ingredients, mix them all together, put them in the oven, and then a little time passes — and you have cake! Or cookies! Or bread! But there’s no magic wand involved in the process — it’s chemistry!

Barks, growls, meows and purrs: Translating cats and dogs

Dog Nikon and cat Zoia look at each other on August 18, 2012, in Warsaw.  (JANEK SKARZYNSKI/AFP/Getty Images)
Dog Nikon and cat Zoia look at each other on August 18, 2012, in Warsaw. (JANEK SKARZYNSKI/AFP/Getty Images)

This episode brings you a slew of dog and cat mystery sounds to puzzle over. Can you tell the difference playful barks and warning barks? How about decoding the meaning behind a cat’s meow?

How do meteorologists predict the weather?

Women use umbrellas in Los Angeles, California (Frederic J. Brown | AFP | Getty Images)
Women use umbrellas in Los Angeles, California (Frederic J. Brown | AFP | Getty Images)

There’s all sorts of weather happening right now around the world. Rain, sun, wind, snow… you name it, somewhere it’s happening. It may seem hard to keep track of it all, but scientists have it figured out. We’ll find out how they collect data on weather around the globe and turn it into a forecast.

Healing skin and regrowing limbs: The science of regeneration

An albino Axolotls is pictured at the laboratory of ecological restoration of the Autonomous University of Mexico in Mexico City. (RONALDO SCHEMIDT/AFP/Getty Images)
An albino Axolotls is pictured at the laboratory of ecological restoration of the Autonomous University of Mexico in Mexico City. (RONALDO SCHEMIDT/AFP/Getty Images)

What superpowers does our skin have to repair itself? And what about other animals like salamanders that can do some pretty extreme healing? We’re going under the skin for this one.

Your booger questions, answered

Nasal mucosa. (Image courtesy of NIH)
Nasal mucosa. (Image courtesy of NIH)

Nasal mucus is very important to our health – and actually kind of magical. There’s a lot going on in our noses all the time that we don’t appreciate. Where do boogers come from? Why does your nose run when you’re out in the cold? Why does your nose get stuffy when you’re sick?

Fart Smarts: Understanding the gas we pass

An example of some of the very, very small microbes living in our guts. (Courtesy of Knights Lab)
An example of some of the very, very small microbes living in our guts. (Courtesy of Knights Lab)

Is farting good for us? Where do farts come from? Why do only some make sounds? And what’s up with the smell? We tackle your questions about the gas we all pass in this episode.