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Evolutionary biology

Males from Mars

In an ant species — or is it two species? — females are produced only by females and males only by males. Explanations of this revelation have to invoke some decidedly offbeat patterns of natural selection.

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Figure 1: Reproduction in Wasmannia auropunctata.
Figure 2: Female castes.



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Queller, D. Males from Mars. Nature 435, 1167–1168 (2005).

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