I was up in the White Mountains this weekend, walking out to my car in the AMC’s Highland Center parking lot after a hike, and there between the buildings and the cars was a gorgeous aspen tree ...

I’m pretty sure this was a quaking aspen (Populus tremuloides ... This time of year, without leaves, they are still interesting, charismatic trees with their thin chalky bark that often has ...

The ability of aspen to produce whole stands of "trees" vegetatively provides ... of the most obvious attributes for last: Why do quaking aspen leaves quake and tremble? The leaves of this species ...

Some organisms can outlive humans by hundreds or even thousands of years, and the contender for Earth's oldest living thing ...