Southern Right whale mating group display and courtship ritual, annual migration

southern right whale mating group courtship annual migration hermanus whale watching eubalaena australis eubalaena right whale cape whale coast ritual whales aerial endangered cetacean ocean aquatic wildlife marine life wildlife callosities walker bay aquatic mammal animal baleen marine nature sea swimming balaena south africa overstrand cetacea overberg balaenidae western cape drone mating season sea animal bulls cow mating group of animals endangered species aquatic animals in the wild ecotourism animal behaviour atlantic