Two Chinese fishermen caught a most unusual fish that has been the subject of much speculation.

Father and son Zhang Chuanzhou and Zhang Xiaogang netted the strange-looking fish on July 16 in the Yangtze River near Wuhan, Hubei Province, reports the Daily Mail.

The creature, which they describe as “vicious and carnivorous,” is 7 feet long and weighs 220 pounds, according to the People’s Daily Online.

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Some say the species might date back to the age of dinosaurs.

It was initially thought to be a Chinese sturgeon, which would be unusual enough, considering that species is endangered.

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One alleged expert, who was unidentified, claimed the fish is a hybrid of kaluga -- a type of predatory sturgeon -- and another unidentified species. This might be the source of the speculation that the mystery fish dates to age of the dinosaurs, because kaluga are believed to have existed for 130 million years, and are now almost extinct.

Instead of killing the rare creature, it has been sent to a local wildlife rehabilitation center, according to the Daily Mail.

Another odd water creature was spotted and recorded (video below) in China's Zhejiang Province in April. While it was also a large creature, it was in saltwater, off China's eastern coast, reports IFL Science. Dr. Stephen D. Simpson, a senior lecturer in Marine Biology and Global Change at the University of Exeter, told the Daily Mail: "This looks to be a male beaked whale of the species Mesoplodon densirostris.”

Sources: Daily Mail, IFL Science / Photo credit: People's Daily Online

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