Er-Raha, Sinai (photo: Joao Pedro Pio) We have developed a number of systems to study in South Sinai; many are concerned with coevolution of one sort or another: The Alkanna - Anthophora study system Spiny mice and their parasites The Gomphocarpus study system The Sinai Baton Blue butterfly - endemic to St Katherine The White-crowned Black Wheatear