Magnified 109x, this 2005 scanning electron micrograph (SEM) revealed that this unidentified wasp's leg appendage bore many sensorial 'hairs', known as 'setae' on its cuticular surface. These hairs are sensitive to changes in the organism's environment including changes in temperature, wind speed and direction, chemical variations, and changes to the physical make-up of its surroundings, i.e., tactile interaction. These setae, along with the insect's antennae, eyes, and wings offer the organism a detailed comprehensive depiction of its immediate environment.
CDC/ Janice Carr
November 3, 2012
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