Tofu Shark Whale Shark, commonly known as Tofu Shark and Dahan Shark, belongs to the global migratory species, and is the largest known marine fish. It can grow to 20 meters and weigh more than 30 metric tons. It is distributed along the coast or ocean in temperate and tropical waters, likes to cruise on the surface, feeds on animal plankton, crustaceans, squid, etc., and is gentle in temperament and viviparous. Whale shark Whale shark is not only the largest shark, but also the largest fish, with a total length of 15~ 18 meters. Whale sharks feed mainly on tiny fish and plankton. Whale sharks have teeth, but they have no effect on predation, because they also swallow food with seawater, and then they can swallow food after filtering seawater with their gills. The only species of the genus cetacea in the family Cetacidae. Huge, it is the largest fish in the world, generally about 10 meter, and the largest can reach 20 meters. 2 distinct skin ridges on each side. The mouth is huge, anterior, and the upper and lower jaws are lipped. The nostrils are located at both sides of the snout, and the water outlet hole is opened in the mouth. Small eyes. The water spray hole is small and located behind the eye. Teeth are small and numerous, conical, and their heads are tilted backward, so they are used in many rows. The gill holes are very wide. 2 dorsal fins, no hard spines. Tail fin is short and wide, forked; There are one pleat on both sides of the caudal stalk, the axis of caudal vertebra is upturned, and there is a depression above the caudal base. The pectoral fin is wide. There are many kinds of sharks with gray-brown, reddish-brown or bluish-brown bodies and many yellow spots and stripes, among which whale shark is the largest individual. Whale shark can reach 20 m in length and 20 t in weight, and it is the largest existing fish in the world. Its body is grayish brown or bluish brown, with many yellow spots or stripes. Its mouth is very wide, almost as wide as the first class, but its teeth are very small, with hundreds of teeth on the upper and lower jaws. Its gill arch has horny gill rakes, which are divided into many small skills and crossed to form sponge-like "filters". As soon as it opens its mouth, the sea water and the small creatures rush into its mouth, and then it closes its mouth, and the water is discharged from the gap of the gill rake, and the small creatures stay in its mouth and become its food. Its food includes plankton and small fish. Whale sharks are distributed in tropical and temperate oceans and also migrate to China's offshore waters. Its liver oil can be used as machine oil or soap, its skin can be tanned, and its meat, bones and internal organs can be used to make fish meal. Whale shark is the "big brother" of living fish. Generally, the body length is about 10 meter, and the largest can reach 20 meters. Whale shark is the largest fish in the world, which is produced in tropical waters and can exceed 15.2 meters and 35,000 kilograms. The largest sample that can be tested for this shark is12.65m whale shark. 1976 a whale shark with a total length of 9.88 meters was caught by a trawler in Baoshan county, Shanghai, weighing 5329 kilograms, of which the fish liver weighed 465 kilograms. A huge whale shark specimen is displayed in the "Marine Animals" exhibition area in zhejiang museum of natural history. This whale shark is more than 12 meters long and weighs more than 10 ton. It is the largest whale shark specimen in China and was captured in the East China Sea by Zhejiang Zhoushan Second Fisheries Company in 1983. 1987 In March, Taiwan Province caught whale sharks for 20 meters and weighed 40 metric tons. Among the Whale Sharks collected in Taiwan Province in recent years, the whale shark with the maximum weight of11290 kg and the minimum weight of 3 10kg is the largest among sharks and fish. Whale sharks survive by preying on small fish or plankton in tropical or subtropical seas. When they prey, whale sharks will stand still under the water with their mouths open, like a big filter. As the largest fish, whale sharks are usually 15m(50ft) long and18t in weight. Whale sharks usually do not pose a danger to humans, but if whale sharks think you are an enemy, they will also take the initiative to hit boats and attack humans. Strictly speaking, a fish should be a whale shark, the only species of the genus Cetacidae. Huge, it is the largest fish in the world, generally about 10 meter, and the largest can reach 20 meters. 2 distinct skin ridges on each side. The mouth is huge, anterior, and the upper and lower jaws are lipped. The nostrils are located at both sides of the snout, and the water outlet hole is opened in the mouth. Small eyes. The water spray hole is small and located behind the eye. Teeth are small and numerous, conical, and their heads are tilted backward, so they are used in many rows. The gill holes are very wide. 2 dorsal fins, no hard spines. Tail fin is short and wide, forked; There are one pleat on both sides of the caudal stalk, the axis of caudal vertebra is upturned, and there is a depression above the caudal base. The pectoral fin is wide. The body is grayish brown, reddish brown or bluish brown, with many yellow spots and stripes. If it refers to aquatic creatures, the biggest "fish" is the blue whale.