Born in South Africa, Watson had an early fascination for nature in the surrounding bush, learning from Zulu and !Kung bushmen. Watson attended boarding school at Rondebosch Boys School in Cape Town, and in 1958 earned degrees in botany and zoology before securing an apprenticeship in Palaentology under Raymond Dart, leading on to anthropological studies in Germany and the Netherlands. He has additional degrees in chemistry, geology, marine biology and ecology, indicating a broad range of interests. Watson earned a doctor of philosophy degree in ethology under Desmond Morris at the London Zoo.