whale
Whales are the common names of cetaceans in marine mammals, and are divided into Odontoceti and whale cetaceans, including Dolphin. But in everyday language, people separate whales from dolphins. Whales are often referred to as whales, but in fact the whale is not a fish. The dolphin family belongs to the whale of the whale, which includes sperm whales and whales. And whales to replace the teeth, the use of whales to be filtered in the water plankton eat whales suborder, a humpback whale and the largest existing animals on the planet blue whales and so on. For centuries, whales have often been used as raw materials for table delicacies or industrial products. However, by the middle of the twentieth century, the number of whales had fallen sharply as a result of the whaling industry, becoming an endangered creature. Fortunately, most countries have signed a global ban order in the 1980s to stop the sustainable development of the whaling industry. ...