Ah, Benny's parents, thanks for coming.

Hiya.

So, Benny has really blossomed this term.

You're telling me, he outgrew his bike. We sold it, on eBay.

Oh, that's not quite what I meant.

It's free to sell on there.

Free to sell?

Easy too. Sold Benny's bike, your guitar, my jacket.

You sold my guitar?

Shall we talk about Benny?

When it's this easy to sell for free, you can't help but say when it's eBay.

Things people love. T's and Cs apply, exclusive vehicles.

Welcome to Science Talk, the weekly podcast of Scientific American for the seven days starting February 21st.

I'm Steve Merski. This week on the podcast,

is there a science to comedy? We'll talk about that with Mo Rocca, and journalist Karina Wu

talks about some of the stories she found at the annual meeting of the American Association

for the Advancement of Science, which just wrapped up in San Francisco. Plus, we'll test your

knowledge about some recent science in the news.

First up, Mo Rocca, you know him as a field correspondent from the Daily Show and many other radio TV and print outlets.

He's also the host of his own show on the Discovery Channel on Sirius Satellite Radio.

I spoke to him last week at his Sir serious studio just before he went on the air.

Mo Rocca, pleasure to be, well, at your place today.

...