Pine processionary Pine processionary The pine processionary ("Thaumetopoea pityocampa") is a moth of the family Thaumetopoeidae. Sometimes placed in the genus "Traumatocampa", it is one of the most destructive species to pines and cedars in Central Asia, North Africa and the countries of southern Europe. The urticating hairs of the caterpillar larvae cause harmful reactions in humans and other mammals. The species is notable for the behaviour of its caterpillars, which overwinter in tent-like nests high in pine trees, and which proceed through the woods in nose-to-tail columns, protected by their severely irritating hairs, as described by the French entomologist Jean-Henri Fabre.
Animal rights leather in the Vegetarian Society's magazine in 1851 as evidence of the existence of a group that sought to avoid animal products entirely. There was increasing unease within the Society from the start of the 20th century onwards with regards to egg and milk consumption, and in 1923 its magazine wrote that the "ideal position for vegetarians is [complete] abstinence from animal products." Mahatma Gandhi (1869–1948) argued in 1931 before a meeting of the Society in London that vegetarianism should be pursued in the interests of animals, and not only as a human health issue. He met both Henry Salt