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70.0 MB (70.0 MB compressed)
4583 x 5340 pixels
38.9 x 45.2 cm ⏐ 15.3 x 17.8 in (300dpi)
STEVE ALLEN / SCIENCE PHOTO LIBRARY STEVE ALLEN / SCIENCE PHOTO LIBRARY
Cactus plants. Cacti are adapted to arid environments, and have tissues that minimise water loss. Cactus leaves are reduced to narrow spines, and the plant surface is covered in a thick, waxy outer layer. Many cacti also have a means of storing water. Photographed in Spain.
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