Shark Coast (S23E09)

David Attenborough travels along the coast of Southern Africa which has an incredible variety of sharks, over 140 species, from massive great whites and tiger sharks to dozens of tiny sharks with intriguing names like the pyjama shark and leopard cat shark. The answer to why these seas are so rich in predators lies in the unique pattern of warm and cold currents allowing sharks that normally live oceans apart to coexist. (BBC)