The blue of its feathers stood out even against the blue of the pre-dawn light. It was a male mountain bluebird, of course, and, unlike its cousins from the day before, it was sitting still. Slowly, I ...

Two thousand species in two hundred countries commit "crimes" daily that alienate them from humans: serial murders, theft, ...

A Colorado-based company is installing a new art exhibit on the 16th Street Mall to make it look like a canopy of aspen trees ...

An author of a recent study about lightning's effect on trees in Panamanian forests says his team has gotten a large, positive response from people, including those who call the trees inspirational.

Of those incidents, seven involved bears getting into trash and five occurred when bears entered unlocked vehicles.

This tree, which will someday rise 40 to 60 feet from the patch of dirt Aria lovingly tucked it into Wednesday morning, is ...