A sperm whale (Physeter macrocephalus), slapping the water with its tail fluke, Sri Lanka, Indian Ocean, Asia

action animal animal behavior animal body parts animal tail animal themes animals in the wild aquatic artiodactyla big breaching cachalot cetacea chordata color image day emergence emerging endangered endangered species fauna giant hitting horizontal huge indian ocean large mammal marine biology massive motion movement no people ocean ocean life one animal outdoors part of photography physeter macrocephalus predator sea sea life slapping species sperm whales splashing sri lanka surface surfacing tail tail fin tail fluke tailfin threatened species toothed whales water water surface whale whale watching wildlife zoology