Pine processionary development, pine processionary caterpillars are highly irritating to the skin. Contact with the hairs of the caterpillar can cause severe rashes (urticaria) and eye irritation. Some individuals may have an allergic reaction to the caterpillar's hairs. 5th stage larvae can eject hairs when threatened or stressed; the hairs, which have the form of harpoons, then penetrate and irritate all areas of exposed skin nearby with an urticating protein. Allergic reactions may follow in susceptible individuals on subsequent exposure to the hairs. The pine processionary is an economic pest in coniferous forests in southern Europe. It is controlled to some extent
Animal trial Animal trial In legal history, an animal trial was the criminal trial of a non-human animal. Such trials are recorded as having taken place in Europe from the thirteenth century until the eighteenth. In modern times, it is considered in most criminal justice systems that non-human creatures lack moral agency and so cannot be held culpable for an act. Animals, including insects, faced the possibility of criminal charges for several centuries across many parts of Europe. The earliest extant record of an animal trial is the execution of a pig in 1266 at Fontenay-aux-Roses. Such trials remained part of several