How the Ukraine war has halted our spying on Russia's bothersome beavers

Shutdown of information sharing imperils research into melting Arctic landmass.

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Beavers were once widespread across Europe and Asia. They could be found from the UK to eastern Siberia. Now, over 85% of Eurasian beavers are found in Europe, says the WWF. Photo: naturepl.com/Matthew Maran/WWF.

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