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  1. Looking for a mate? Oh, whatever

    Two cricket species don't seem to care whether they get mixed up at mating time, an oddity that may have something to do with the female's need to dine on leftover sperm.

    By Susan Milius

  2. Social tuco-tucos develop more variety

    In mustachioed rodents called tuco-tucos, group life seems to have fostered more diverse immune systems than has solitary living.

    By Susan Milius

  3. She salamanders punish fickle mates

    Female salamanders get aggressive if the male they share a rock with wanders back after an interlude with another female.

    By Susan Milius

  4. 19249

    A mild objection: This article on lichens mentioned that lichens are composed of fungi and algae, a type of protist, as if it were a given that all agree to.