Photographed in Utah and Alaska.  I followed the mother and her two calves for a couple of days staying well out of her comfort range with my 500 mm lens.  Moose can become very aggressive especially if the cow had one or two calves with her.  The close up was taken in Alaska.  Notice how intent she is.  She was more concerned about the barking dog, as her yearling was with her, than she was of me.