In the 58 seconds that you have watched this gray squirrel, his heart has beat approximately 249 times. He is quietly at rest, safe on a window sill at my home. When a squirrel gets into full flight his heart rate can easily double. Whew!
gray squirrel
TagFeathers and Fur
Jordan Lake Dam, Haw River: I was tracking the great blue heron, hoping it would cross in front of the trees with their fresh light green leaves and give me a nicely composed landscape photo. The heron obliged me and did just that. But, when I got home I found that another critter had managed to get photographed too! Have you found the squirrel yet?

