The warm and mild waters that bathe Tenerife's coast are the perfect habitat for marine species such as the bottlenose dolphin (Tursiops truncatus). These dark grey cetaceans are extremely sociable and live in pods of up to twenty specimens. There is a resident population of bottlenose dolphins off the south-west coast of Tenerife that can sometimes be seen barely two miles out. With males averaging 2.7 m (88.5 ft) and females measuring roughly 2.5 m (82 ft), the bottlenose dolphin feeds largely on fish and cephalopods.