Real Fish Attack Simulated Plankton

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Science  07 Sep 2012:
Vol. 337, Issue 6099, pp. 1181-1182
DOI: 10.1126/science.1228217

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Watching a cat chase a laser pointer across the floor makes us wonder how they can so easily be fooled. Yet, cats, humans, and many other animals respond readily to simulations as if they were real. On page 1212 of this issue, Ioannou et al. (1) report the creation of a virtual world in which real animals interact with simulated groups. In their study, simulated zooplankton (Daphnia) interact with each other and are attacked by real fish. The results shed light on fundamental questions in evolutionary biology.

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