Konrad Lorenz, biolgist, ornithologist, a father of the modern science of ethology is assertive, flamboyant and politically controversial. The discoverer of previously unrecognised principles governing behaviour. An animal lover and author of popular books about them - who also warns us of the dangers of own animal nature. As he approaches his 70th birthday, which is the real Konrad Lorenz? In this first of a new season of Horizons, the world's leading animal watcher is himself observed.