Template:POTD/2010-06-14
A Macroxiphus species katydid nymph on a leaf. Nymphs of this genus mimic ants to avoid predation. Mimicry occurs when a group of organisms, the mimics, evolve to share common perceived characteristics with another group, the models. The evolution is driven by the selective action of a signal-receiver, or dupe.Photo: Muhammad Mahdi Karim