Mayflies fly across the Danube River in Hungary, like snow at night-瞭望新时代网-瞭望时代，放眼世界

Mayflies fly across the Danube River in Hungary, like snow at night

2022-08-12

On August 9, local time, in St. Andre, Hungary, mayflies flew over the water surface of the Danube in groups after sunset. In the past 40 years, mayflies have disappeared from the rivers in Central Europe due to water pollution. However, around 2012, the number of mayflies increased due to the improvement of water quality. (news agency)

Edit：Li Jialang Responsible editor：Mu Mu

Source：chinanews.com

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