How pollution and exploitation, including oil spills and sewage dumping, have endangered wildlife and the Mediterranean terrain. Also: visits to areas where animals still live safely, such as the coasts of Majorca and Tunisia.
David Attenborough visits Jordan, Spain, Italy and Malta. Included: the Arabs' passion for horses, which were the key to the spread of Islam in Spain; the devastation of forests in Spain for sheep pastures and in Italy for shipbuilding.