This image from Saturday shows two bull moose squaring off in what was a relatively gentle test. Preparations for the rut in September / October? Possibly. Like elk, moose will become very aggressive during mating season. Any humans in the vicinity could find themselves attacked.
Taken at Brainard Lake in Arapaho National Forest, Colorado.
![Two moose bulls square off in what was a relatively gentle contest. © Tony’s Takes](http://lh6.googleusercontent.com/-VLwpVS1ZSxU/U9a0XoLObxI/AAAAAAAAC0A/8MMbmnzrwdw/s710/2014-07-26+06-28-56+-+0217.jpg)