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The why of puppy dog eyes, and measuring honesty on a global scale

Molly Marshall/Flickr

How can you resist puppy dog eyes? This sweet, soulful look might very well have been bred into canines by their intended victims—humans. Online News Editor David Grimm talks with host Meagan Cantwell about a new study on the evolution of this endearing facial maneuver. David also talks about what diseased dog spines can tell us about early domestication—were these marks of hard work or a gentler old age for our doggy domestics?

Also this week, host Sarah Crespi talks with Michel Marechal of the University of Zurich in Switzerland about honesty around the globe. By tracking about 17,000 wallets left at hotels, post offices, and banks, his team found that we humans are a lot more honest than either economic models or our own intuitions give us credit for.

This week’s episode was edited by Podigy.

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[Image: Molly Marshall/Flickr; Music: Jeffrey Cook]

Source: Science Mag