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  • Study: Big-headed ants grow bigger when faced with fierce competitors

    Big-headed ants get their name from the soldier ants, left, which are larger than other workers and have disproportionately sized heads. The ants pictured here are from Australia.

    Big-headed ants get their name from the soldier ants, left, which are larger than other workers and have disproportionately sized heads. The ants pictured here are from Australia.

    Photo Alex Wild, used with permission

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  • To reach Andrew Suarez, call 217-244-6631; email suarez2@illinois.edu.
    To reach Bill Wills, email bwills2@life.illinois.edu.

    The paper, “Body size variation and caste ratios in geographically distinct populations of the invasive big-headed ant, Pheidole megacephala (Hymenoptera: Formicidiae),” is available online or from the U. of I. News Bureau.