28.9 MB (3.4 MB compressed)
3897 x 2596 pixels
33.0 x 22.1 cm ⏐ 13.0 x 8.7 in (300dpi)
FRANCESCO TOMASINELLI / SCIENCE PHOTO LIBRARY FRANCESCO TOMASINELLI / SCIENCE PHOTO LIBRARY
Fairy circles, in the Namib desert. There are a number of theories as to what causes these circles; some claim they are caused by termites that cut the grasses; other theories maintain that competition between grass species for scarce resources cause the patterns.
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