The image shows a large number of caterpillars feeding on the leaves and stems of a plant called Sand button (creeping thorn rose, Neurada procumbens), also known as saadan in local parlance. The caterpillars are black with white stripes or spots and have a fuzzy appearance. They appear to be eating the leaves and stems of the plant.
The image was taken on February 11, 2014, near a road to Saudi Arabia in southern Qatar. The background is sandy, with small rocks scattered throughout. There are also some green leaves visible, likely from other plants growing in the area.
Overall, the image suggests that the caterpillars are feeding on the Sand button plant, which may be a common food source for them in this region. – AI vision