27.0 MB (1.4 MB compressed)
2664 x 3543 pixels
22.6 x 30.0 cm ⏐ 8.9 x 11.8 in (300dpi)
DR JEREMY BURGESS / SCIENCE PHOTO LIBRARY DR JEREMY BURGESS / SCIENCE PHOTO LIBRARY
Bee sting. Coloured scanning electron micrograph of the posterior end of a honeybee Apis mellifera showing the bee's sting (needlelike). The sting is a modification of the female ovipositor, or egg- laying apparatus. The ovipositor is no longer used to lay eggs, but instead serves as a weapon of defense and as a means of paralysing the bee's prey by injection. Only females sting. The sting consists of moveable chitinous elements, into which the ducts of two glands open (red, at bottom): one producing poison. The barbed sting is found only on worker bees. Magnification x12 at 6x4.5cm size.
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