Introducing Peak Scientific. With over 25 years of expertise, Peak leads the industry in providing

reliable, high purity gas generators for LCMS and GCMS. Whether you're in the lab conducting

groundbreaking research or pushing the boundaries of science, trust Peak Scientific to supply

gas for undisrupted workflows.

When it comes to your LC or G.C, don't settle for less. Choose the solution that is tested, validated, and approved by leading instrument manufacturers globally.

Visit peak scientific.com and quote science podcast to receive special offers.

Welcome to the Science Podcast to receive special offers. Welcome to the Science Podcast for December 11, 2015.

I'm Suzanne Bard.

In this week's show, David Grimm talks with Sarah Crespi

about the week's most interesting online news stories,

and then we hear from Brendan Lake

about a new computational

model that learns to make concept generalizations the way humans do.

Support for the science podcast is provided by AAAAS, the American Association for the Advancement

of Science, advancing science, engineering, and innovation throughout the world for the benefit of all people.

AAAS, the Science Society.

Now we have David Grimm, editor for our daily news site.

He's here to talk about some recent online stories.

I'm Sarah Cresby.

First up, we have a story on what gives

cockroach feces its attractive smell. Well, attractive to cockroaches, at least.

Exactly. Apparently, we didn't always know what cockroaches found so attractive about each other,

...