Mt. Graham is known as a sky island, a mountain ecosystem surrounded by a “sea of desert.” Its isolation makes the Mt. Graham ...

In nature, it really is survival of the fittest. Photos of a red squirrel and woodpecker have gone viral after they showed the two animals fighting each other for nuts. Karen Crawford took the ...

Campaign launched for endangered red squirrels to get emoji ...

A photographer has captured a remarkable image of a red squirrel just before it attacks a grey squirrel for getting too close, British news agency South West News Service reports. John O'Brien took ...

I started seeing them there a few weeks ago, not recalling them near my cabin feeders before. When they showed up, I also noted that the most common mammal to invade the feeder seemed absent. These ...

Philip Cox has received funding from the Royal Society. Red squirrels have been replaced over a large part of Great Britain by the non-native grey squirrel, introduced from North America in the late ...

I had a red squirrel proceed cautiously through my backyard in December -- a round-bodied, cinnamon-furred, full-tailed little thing working its way across a stone wall. I don't know if I've ever seen ...