Dolphins are very much in harmony with nature. They are even tolerant of sharks as long as the leave them alone, but can kill sharks if they are attacked. Dolphins are very friendly among them selves and to human. They see to like humans to touch their soft, warm smooth skin and love to play. Dolphins are very intelligent, some have bigger brains than humans.
Dolphins seem unusually happy.
These highly intelligent animals seen to be able to live with nature with out changing anything. The scientific order Cetacea includes all whales. This order is further divided into three suborders. The toothed whales include dolphins, porpoises, beluga whales, beaked whales, and sperm whales. The baleen whales include blue whales, gray whales, and right whales.