Fish show cheating can be better than playing by the rules in the mating game

The males of some species go to extraordinary lengths to attract females – but some simply cheat. Take African cichlid fish. Many males build underwater "sandcastle" structures that the females use to judge the quality of their potential mates. But, as my colleagues and I found out during a recent study, some males don't bother with this show of construction prowess, and instead are able to father offspring by engaging in "sneaky mating".

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