Mating group of Southern Right whales in Atlantic, cow followed by bulls, aerial

mating group mating aggregation southern right whales atlantic cow bulls aerial polygamous courtship ecotourism eubalaena australis mating ritual hermanus entangled group polyandrous whale annual migration whale watching eubalaena right whale cape whale coast ritual endangered cetacean ocean aquatic wildlife marine life wildlife callosities walker bay aquatic mammal animal baleen marine nature sea south africa overstrand cetacea balaenidae drone sea animal mating endangered species aquatic animal behaviour copulation