POWER AND SYRED / SCIENCE PHOTO LIBRARY POWER AND SYRED / SCIENCE PHOTO LIBRARY
Butterfly antenna. Scanning electron micrograph of the surface of the antenna of the large white butterfly, Pieris brassicae. Antennae are the paired mobile sense organs found on the butterfly's head. The surface is covered with sensory bristles (hair-like) that respond to various stimuli. Some detect aromatic molecules, some detect air movement and others sound. They all work together to monitor the butterfly's environment. At upper right and lower left of the frame are scales (white, feather-like). These are similar to wing scales but may have functions additional to protection and coloration on the antenna. Magnification x240 at 5x7cm size. Magnification: x530 at 6x4.5 inch size.
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