50.0 MB (3.6 MB compressed)
5136 x 3402 pixels
43.4 x 28.7 cm ⏐ 17.1 x 11.3 in (300dpi)
COLIN VARNDELL / SCIENCE PHOTO LIBRARY COLIN VARNDELL / SCIENCE PHOTO LIBRARY
Silk button galls on the underside of pedunculate oak leaf caused by the gall wasp Neuroterus numismalis. Photographed in Dorset, UK, in September.
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