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HARBIN Steve Birnbaum USA Jersey , Sept. 29 (Xinhua) -- Researchers have found a large number of Aldrovanda vesiculosa, an endangered species commonly known as waterwheel plants, in a wetland in northeast China's Heilongjiang Province, local authorities said Friday.

Researchers from universities and Qixinghe National Nature Reserve identified more than 5,000 waterwheel plants scattered in an area of over 600 square meters in the reserve during an observation tour between Sept. 20 and 23, according to the provincial forestry department.

Waterwheel is a rootless and free-floating plant Sebastian Lletget USA Jersey , like an aquatic Venus flytrap. It was under class one national protection in 1999 and listed as an endangered species by the International Union for Conservation of Nature.

"Waterwheel plants have strict requirements for water, which needs to be shallow, warm and extremely clean," said Yao Yunlong from the Northeast Forestry University, which participated in the research.

Yao said the discovery showed a better local environment driven by China's stronger ecological protection. The Chinese leadership are emphasizing ecological protection, demanding an increase in the size of forests Sacha Kljestan USA Jersey , lakes and wetlands.

China boasts 577 nature reserves and 468 wetland parks. The push for preservation has gone as far as becoming part of the criteria for assessing local government officials in some regions.

Waterwheel plants are found in Europe, Asia, Africa and Australia. In China, it only spreads in Heilongjiang. Yao said they first found this species in 2015 in a wetland in the province but only a small quantity.

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The American Idol judging panel is locked in!

After weeks of speculation Perry Kitchen USA Jersey , Luke Bryan took to Twitter on Friday to confirm that he'll be joining the ABC reboot, alongside Lionel Richie and previously announced judge Katy Perry.

"Hey guys, it's Luke Bryan here. Greetings from Hayfield in Kansas. I'm so excited and proud to announce that I will be one of the three judges on ABC's American Idol," Bryan began his video message. "I will be joined with the beautiful Ms. Katy Perry and my hero, Mr. Lionel Richie, and my fellow Georgia boy Paul Arriola USA Jersey , Ryan Seacrest."

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Richie quickly followed up by sharing a photo of his official Idol portrait.

"HELLO @AmericanIdol! Excited to announce that I will be on the judges panel w@katyperry@LukeBryanOnline & host @RyanSeacrest," he wrote. "#TheNextIdol."

Perry, who was announced as the show's first judge in May, revealed in an interview with Seacrest last month that she was pulling hard for Richie to join her on the judges table.

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And though Bryan and Richie have just joined the team, auditions for Idol have been going on since August without any judges.

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