Secret to why grey squirrels outcompete reds may lie in gut bacteria – study
by Nilima Marshall
Feb 15, 2024
2 minutes
The secret to why grey squirrels outcompete their red counterparts may lie in their gut bacteria, scientists believe.
Grey squirrels are an invasive species from North America that was introduced to the UK and Ireland in the late 19th century.
They out-compete the native red squirrels for food and space and carry a disease, called
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