Saturday, 4 October 2014

Big-headed ants grow bigger when faced with fierce competitors

Date:
October 2, 2014

Source:
University of Illinois at Urbana-Champaign

Summary:
The big-headed ant (Pheidole megacephala) is considered one of the world's worst invasive ant species. As the name implies, its colonies include soldier ants with disproportionately large heads. Their giant, muscle-bound noggins power their biting parts, the mandibles, which they use to attack other ants and cut up prey. In a new study, researchers report that big-headed ant colonies produce larger soldiers when they encounter other ants that know how to fight back.


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