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Animal behaviour

Wise fathers

As Shakespeare put it, “It is a wise father that knows his own child”. Male bluegill sunfish do: they adjust their behaviour towards their young according to how sure they are of being the real father.

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Figure 1: A colony of breeding bluegill sunfish in Lake Opinicon, Ontario, Canada.



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Correspondence to Ben C. Sheldon.

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Reynolds, J., Sheldon, B. Wise fathers. Nature 422, 669–670 (2003).

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