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Welcome to the Science Podcast for November 14, 2014.

I'm Sarah Cresby.

In this week's show, we have David Grimm up first with some online news stories, and then we hear from Elizabeth Penisi about the

important ecosystem services provided by the hippopotamus.

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, at www.aAAS.org.

Now we have David Grimm. He's the editor of our daily news site, here to talk about some recent online stories.

Hi, Dave.

Hey, Megna.

I'm Magna Satch Dave, and today we're

going to start with kind of a weird story. I'm assuming you've had that weird feeling like someone's

standing right behind you. Well, so apparently researchers have been able to recreate this feeling

in the lab. Why would they want to do that? Well, this traces back to this unusual

observation about 10 years ago where a neuroscientist was manipulating the brain of a patient.

And when he hit a region of the brain known as the frontoporietal cortex, this is a region

...