Podcast: Yawning Dogs, Stone-Throwing Chimps, and More

Is biodiversity good for allergies? What does a stone-throwing chimpanzee tell us about planning in animals? And are dogs capable of empathy? Science 's Online News Editor David Grimm chats about these stories and more with Science's Sarah Crespi.

(Listen to the full Science podcast and more podcasts.)

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A 3D plot from a model of the Ebola risk faced at different West African regions over time.
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