DR KEITH WHEELER / SCIENCE PHOTO LIBRARY DR KEITH WHEELER / SCIENCE PHOTO LIBRARY
Spider spinneret, light micrograph. The spinnerets are located at the end of a spider's abdomen. Silk, produced in abdominal glands, is extruded through the spinneret and spun by its hairs into silk threads. Magnification: x70 when printed at 10 centimetres wide.
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