Oak processionary the same manner. Oak is its preferred food source, but the moth also eats the leaves of hazel, hornbeam, sweet chestnut, birch and beech. The moths pose an increasing threat to humans as their range is extended. The backs of older caterpillars (3rd to 6th instars) are covered with up to 63,000 pointed defensive bristles, which contain an urticating toxin (e.g., the protein thaumetopoein). The setae break off readily, become airborne and can cause epidemic caterpillar dermatitis (lepidopterism), manifested as a papular rash, pruritus, conjunctivitis and, if inhaled, pharyngitis and respiratory distress, including asthma or even anaphylaxis; however, as of
The Human Animal (TV series) The Human Animal (TV series) The Human Animal: A Personal View of the Human Species is a BBC nature documentary series written and presented by Desmond Morris, first transmitted in the United Kingdom from 27 July 1994. The series was produced in association with Discovery Channel. Morris describes it as "A study of human behavior from a zoological perspective." He travels the world, filming the diverse customs and habits of various regions while suggesting common roots. At the close of episode one, Morris said: Erratum: Firewalking has been explained. The accompanying book, "The Human Animal" by Desmond Morris (), was