Found in the coastal waters of all major oceans, great whites are the most recognisable of all shark species. They are capable of diving to depths of up to 1,200 metres, and occasionally carry out cross-ocean migrations. Females are larger than males, reaching a maximum of six metres in length, while all great whites are grey-blue on top and white underneath in a camouflage phenomenon known as counter-shading. They have a varied diet, preying on marine mammals, fish and seabirds, although South African great whites specifically target Cape fur seals. Although they are ambush predators, they are capable of short bursts of incredible speed. Despite their fearsome reputation, great whites are considered at risk, listed as Vulnerable on the IUCN Red List.