ODER, POLAND - AUGUST 16: A dead animal is seen on Oder river bed after thousands of dead fish were found floating on the river in Oder, Poland on August 16, 2022. Polish firefighters have recovered 100 tonnes of dead fish from the Oder river running through Germany and Poland, deepening concerns of an environmental disaster for which no cause has yet been identified. Jo Harper / Anadolu Agency/ABACAPRESS.COM