30.1 MB (672.0 KB compressed)
3660 x 2876 pixels
31.0 x 24.4 cm ⏐ 12.2 x 9.6 in (300dpi)
STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY
Wasp sting. Coloured scanning electron micrograph (SEM) of the sting of a tropical wasp. The sting is a modification of the female ovipositor, or egg-laying organ. It is no longer used to lay eggs, but instead serves as a weapon of defence and attack. The sting consists of a lancet (pink), with a venom sac at it base and attached muscles. When not in use the sting is encased in the abdomen (bottom left). Magnification: x65 when printed at 10 centimetres wide.
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