One of the biggest red squirrel protection groups in England says it is facing an "invasion" of greys. The larger grey ...

North American red squirrel pups are shown at 25 days old. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions ...

They monitored red squirrels, grey squirrels and pine martens ... most often a North American species called Sitka spruce. They may appear like forests from the outside but they lack the ...

Eastern Gray Squirrel, American Red Squirrel, and Southern Flying Squirrel. Eastern Fox Squirrels are the largest tree squirrel in North America. They have striking rust-colored fur and a hint of ...

A disease that kills Britain's native red squirrel has moved north of Scotland's central belt for the first time. Scientists have confirmed the death of a red squirrel from the squirrelpox virus ...