Its huge body provides people with a large number of products such as whale meat and whale oil. The value of a blue whale of about100t is 10000 USD. Whale meat accounts for about half of whale's weight. In addition to grinding into coarse powder as feed or fertilizer field, it can also be processed for human consumption. It is rich in protein and has high nutritional value. Food malls in Norway and Japan serve fresh whale meat and canned whale meat. Japanese food researchers believe that whale meat tastes better than beef and is one of the most delicious foods in the world. Japan also uses whale meat as raw material and processes it into man-made fibers.
Whale fat has many other uses. It can make candles and oil paints. It is also used in steelmaking and tanning industries. Because the viscosity of whale oil remains unchanged at high temperature, it is used as lubricating oil for some precision instruments. For example, sperm whale oil can be used to extract industrial oil and whale wax oil. Whale wax oil is taken from the head of sperm whales. It has a high melting point and can be used to make cosmetics and candles.
1. Whales belong to the phylum Chordata, Vertebrate, Mammalian and Euvertebrate, including about 98 viviparous mammals living in oceans and rivers. There are more than 30 species in China waters. The definition of "whale" itself is vague, and cetaceans can include all cetaceans, as well as cetaceans of specific families. Cetaceans also include dolphins, killer whales and giant whales, all of which belong to the family Phallidae.
2. Cetaceans are mainly divided into two suborders: baleen whales and toothed whales. There are fewer species of baleen whales, but they are huge. At present, the smallest known species is more than 6 meters long, and the world's largest animal, the blue whale, also belongs to it. The shape of toothed whales varies greatly, the smallest species is only about 3 meters, and the largest sperm whale is more than 20 meters long. In terms of weight, the largest whale weighs160,000 kg, and the smallest whale weighs 2000 kg. Whales are not fish. Whales belong to mammals.