The aspen tree (Populus tremuloides) is the most widely distributed tree species in North America, ranging from Alaska to Newfoundland and down the Rocky Mountains to Mexico. Utah and Colorado ...

A single aspen clone often covers less than an acre, but sometimes more—even much more. Sometimes a tree is its own forest. In south-central Utah, up near 9,000 feet on the Colorado Plateau ...

If you want to know the age of a bird, you might be surprised to know that there are no good ways to figure it out, at best ...

Here’s how it works. Why it's incredible: Pando looks like a forest, but it's actually one giant tree. Pando is an ancient quaking aspen tree (Populus tremuloides) with 47,000 genetically ...

This wound leaves open the possibility of diseases or pests entering the tree,” the Leave No Trace website said. Aspen trees are particularly vulnerable because they are linked together ...

While aspen are susceptible to threats like heat and insects, they are hearty in other ways. They are sun-loving trees that can thrive even when human activity like logging disrupts other tree ...

Aspens are one of Scotland's rarest and most important trees An initiative to save one of Scotland's most endangered species of tree has been launched in the Cairngorms National Park. Aspen ...

Inspired by the dark “eyes” of the aspen tree — scars left behind on the trunks after the trees drop lower limbs that aren’t getting enough sunlight — the distinctive window designs in ...