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Schools make fish smarter

Sticklebacks make wiser choices in groups of three or more

New research on decision making in fish shows that the bigger the school, the higher the chance the group makes the right choice, scientists report online November 13 in Current Biology.

Trusting group decisions is a cornerstone of modern human society. Trial juries, Wikipedia and even American Idol are based on trust in consensus decision making. And underwater in the stickleback fish world, things aren’t so different.

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