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Why don’t carnivores need to eat their vegetables?

(Mehgan Murphy |Smithsonian's National Zoo)
(Mehgan Murphy |Smithsonian's National Zoo)

We’re back with new episodes! Carnivores are animals that only eat other animals – so how do they get the vitamins, minerals and fiber that we humans get from eating plants? We take a trip to a salad bar with some animal pals to find out.

How do you catch a cold? (Encore)

Image of a rhinovirus from Jean-Yves Sgro of the University of Wisconsin-Madison.
Image of a rhinovirus from Jean-Yves Sgro of the University of Wisconsin-Madison.

We’ve been catching colds for millennia – but it wasn’t until fairly recently that we actually understood how and why we get sneezy, coughy, and achy. In this episode, we find out more about the common cold: Does standing outside in the cold actually make it easier to get sick? Is there a cure that […]

“I Am the Universe” by Jasper Nordin

Aliens are awesome. Some are so huge, 50,000 beings could fit on their pinkie fingertips. Some are so tiny, several trillion of them could live on the head of a pin. There is a theory, however, that the Universe itself is a massive alien; the stars and planets are merely pores on its skin. In […]

Extinction (encore)

Image: Tim Evanson/flickr
Image: Tim Evanson/flickr

Dinosaurs with feathers, passenger pigeons and Australopithecus – together at last!

You can Kickstart Brains On!

brainsOn_KS_email_header_600

We’ve launched a Kickstarter to raise money for Brains On!  You can support Brains On! by giving to this campaign (and while you’re at it, score some cool Brains On! rewards) and sharing it with other science-loving people.

Brains On! Besties

Image courtesy of Kristina Alexanderson/flickr
Image courtesy of Kristina Alexanderson/flickr

Meet the Brains On! Besties… kid-friendly audio finds we think you’ll love.

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)

Do spiders give you the heebie-jeebies? If so, we want to change your mind about our eight-legged buddies!