Researchers found 20 areas where the mammal would survive even if grey squirrels colonised all of Britain
Twenty forest strongholds in Scotland would save the red squirrel from extinction even if grey squirrels were to colonise the whole of Britain, according to research.
Since their introduction from North America by Victorian enthusiasts, grey squirrels have pushed red squirrels out of much of the country, with reds outcompeted by the bigger greys and also succumbing to the squirrelpox virus carried by the non-native squirrel.
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