BBC11 个月
Red squirrel numbers hurt by planting of 'non-native' trees
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 ...
EurekAlert!2 年
North American Red Squirrels (IMAGE)
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 ...