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Thank you. and quote science podcast to receive special offers. Welcome to the science podcast for February 19th, 2016.

I'm Sarah Cresby.

In this week's show, Laura Blanton talks about malnutrition and the gut microbiome. And David Grimm is here with

stories from the website, the AAAS annual meeting, and a few jokes from Twitter.

Support for the science podcast is provided by AAAS, the American Association for the

Advancement of Science.

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

He's here to talk about some recent online news stories and a few highlights from the AAAS annual meeting.

I'm Sarah Crespi.

First up, we have a story from the meeting on perception and the body.

The story starts out with the old, we don't see the world the same way.

You know, we can't be sure if we're seeing the same green when we look at grass.

But can we tell if we're seeing the same size ball?

Why would we not see the same size of things, Dave?

When you think about it, you know,

the way that you perceive the world impacts what you're able to do. So for example, back to the ball example, if you're a really good batter for a game like baseball or softball, it would

...