There are some things you should always check, like the hygiene rating on your local takeaway,

the setting on your razor, and whether the party actually is fancy dress.

The other thing you should check is your Experian credit report, especially if you're looking to borrow money.

It lets you understand what lenders see, so you can increase your chances of getting the best deals.

It's dead easy to check it and completely free.

See it in seconds. Download the Experian app today.

Welcome to the Scientific American Podcast Science Talk posted on April 27, 2012.

I'm Steve Merski. On this episode,

Feet were definitely a hot topic at this meeting. At Scientific American editor Kate

Wong. She recently attended the annual meeting of the American Association of Physical

Anthropologists in Portland, Oregon. We spoke about feet and other foundational subjects at the

Scientific American offices. Fascinating conference. Tell us about it. There were several

really, really interesting stories that came out of that meeting. The first one was a big study looking at the question of why chimpanzees

kill other chimpanzees in the wild. And there was a presentation given by Michael Wilson of the

University of Minnesota, along with a whole bunch of co-authors who are like a who's who of chimpanzee researchers.

Basically, the study looked at 17 communities of chimpanzees that have been studied by scientists for quite some time.

And they looked at 86 killings in those communities and tried to figure out what it is that triggers chimpanzees to kill one another.

And what they found was, well, basically there have been two theories for why this happens.

One was that it's just an evolved strategy for reducing competition for resources.

And the second idea was that it might be triggered by human disturbance.

So things like deforestation or in some cases, you know, situations where people had been feeding the chimpanzees, things like that.

So when they looked at these 86 killings across these 17 communities in Central Africa, East Africa, West Africa,

...