However reports exist of finless porpoises in the Yangtze River performing “tail stands.”.Finless porpoises are opportunistic eaters and feed upon what is available. More often, porpoises are indirectly killed by fishing endeavors due to accidental entanglement in fishing nets.The greatest threat to their population, however, is not fishing but environmental destruction. Ships use it to transport coal and manufactured goods. Click here to find out more facts … Mother porpoises carry their calves along their ridged back and wean their calves at seven months of age.The social behaviors of finless porpoises appear to be less sophisticated than those associated with dolphins. The mother-calf dyad seems to be the most stable social unit among finless porpoises.Like dolphins, finless porpoises are active swimmers, surface to breath, and use both sonar and eyesight to navigate their underwater realm. Hehehe!super, really useful for school work! Unlike a normal porpoise, this rare individual does not have a dorsal fin. This population of porpoises bears the unglamorous nickname of “the river pig.”.Both in salt and fresh water, finless porpoises favor the murky waters close to shore and can be found in estuaries and marshes.No definitive numbers for the finless porpoise population exists, but estimates in their Asian coastal habitat and particularly in the Yangtze River show yearly decline. Some porpoises don't just stay in the ocean. the teacher loved it, again, thanks.So imformative! Now the number has returned to 110," said Pan. The narrow-ridged finless porpoise (Neophocaena asiaeorientalis) is a newly accepted species, by the International Union for Conservation of Nature (IUCN), of porpoise endemic to the western Yangtze river in China and the East China Sea, Yellow Sea, and around Japan.There are two subspecies: the Yangtze finless porpoise (N. a. asiaeorientalis) and the East Asian finless porpoise (N. a. sunameri). These small yet visible bumps are called tubercles. Marked by its lack of a dorsal fin, this playful but shy mammal instead sports a ridge that extends between the blowhole and the tail flukes. Finless porpoises are not believed to use elaborate sound signals to communicate socially, as dolphins do. I bet my teacher won’t know most of these facts! As with other porpoise species, finless porpoises are not inclined to the theatrical, circus-like displays of dolphins. The Yangtze finless porpoise is one of the strangest sea creatures. Before then, people crossed the river by ferry.The River Yangtze has more than 700 tributaries.The Yangtze is home to many different species of animal. The finless river porpoise is classified as endangered. The Finless Porpoise (Neophocaena phocaenoides) can be found swimming in the warm coastal and estuary waters of temperate and tropical Asia. thanks:D.This has helped me so so much for my double page homework! Since the species is very sensitive to water quality and noise, the number of Yangtze finless porpoises once plunged to a mere 72 in the Dongting Lake, a lake that flows to the Yangtze River. However reports exist of finless porpoises in the Yangtze River performing “tail stands.” Most species are 5 to 8 feet long and weigh between 100 and 200 pounds. Porpoise has rounded body and blunt jaw. The porpoises breed in the spring and have a gestation period of ten to eleven months. The River Yangtze has more than 700 tributaries. They are active swimmers, but are shy and not as acrobatic. The Yangtze finless porpoise is one of the strangest sea creatures. So the Yangtze finless porpoise earned the nickname 'the panda in the water.' An endangered Yangtze finless porpoise is seen in the river on Aug 16. The finless porpoise is a unique member of the Phocoenidae family and is closely related to other porpoise species, whales, and dolphins. Passenger ships also use the river, and Yangtze River cruises are become quite a big tourist attraction.Flooding of the Yangtze River can be a major problem. Read on to discover more interesting facts about them. awesome info I will recommend this site to my teacher,this has helped me so much for my school project,It helped me with my homework very useful,this was amazing help me so much. Dorsal fin is triangular in shape. Instead, it has little bumps in the middle of its back. Unlike a normal porpoise, this rare individual does not have a dorsal fin. Belly is white in color. It has so many interesting facts none of them are rubbish facts!thank you. They are an even grey in color.Finless porpoises have an average lifespan of twenty-five years; males are considered sexually mature by six years of age, and females reach sexual maturity by nine years of age. some of these, such as the Chinese Alligator, the Finless Porpoise and the Chinese Paddlefish, are endangered due to river pollution and high levels of river traffic. • They have moderately large flippers. The river porpoise population is suffering due to environmental destruction caused by widespread sand dredging and heavy boat and ship traffic that makes it difficult for porpoises to see visually and to use their sonar systems to locate prey.For more general information on the finless porpoise, click here.For details on physical appearance and more general information, click here.For detailed information on finless porpoise population, click here.Harbor Porpoise Facts about the Harbor Porpoise. The Yangtze is home to many different species of animal. Unlike most sea creatures that lay eggs, the Yangtze finless porpoise is, in fact, a mammal meaning that it physically gives birth. • They have a rounded head and are a dark to pale grey colour. Instead, it has little bumps in the middle of its back. plenty of facts to know!i love this website so much it gives me a lot of information for school work,Great, these facts will be useful for my Yangtze river geography presentation!!!
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