This undated photo provided by the 'Senckenberg Institute' shows a 'Danish Mayfly'. The Danish Mayfly has been selected by a German entomological society as the Insect of the Year for 2021, but wont ...
BUDAPEST, July 28 (Reuters) - Mayflies on the river Danube in Budapest are swarming earlier and in greater numbers than usual this year due to low water levels and an unusually hot summer, filling the ...
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