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Amoebae control cheating by keeping it in the grouped family No one likes a cheater, even a single-celled one. New study from Rice University displays how cooperative single-celled amoebae rely on family members ties to maintain cheaters from undermining the health of their colonies. The study made an appearance in the Proceedings of the National Academy of Sciences in May. It is rather unusual to get a complete story in biology – – one that marries careful field work with painstaking work in the laboratory – – and that’s what we have here, said research co-author Joan Strassmann, seat of Rice’s Division of Ecology and Evolutionary Biology. Rice’s study involved the common soil microbe Dictyostelium discoideum. These amoebae can be loners in moments of plenty, however when food is scarce they interact, forming colonies to ensure their survival.