STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY
Goosegrass fruits. Coloured scanning electron micrograph (SEM) of the hooked fruits of a goosegrass plant (Galium aparine). The hooks become lodged in the fur of passing animals, ensuring that the plant's seeds, which are held in the fruits, are well dispersed before germination. Goosegrass is an annual weed that is native to Eurasia. Magnification: x20 when printed at 10 centimetres wide.
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