Ever wonder how many trees stand tall in North America's vast boreal forest? A new University of Alberta study has the answer ...

Fitz-Hugh said a lot of trees developers choose to plant in place of old native trees often won’t grow to the size of the ...

Imagine walking through a forest and realizing that once-iconic trees—trees that shaped entire ecosystems and inspired ...

Over 300 invasive species are in the United States' national parks, causing a variety of issues such as harmful changes in ecosystem ecology, disease emergence, and local species extinctions. Invasive ...

There are so many things making up the story of a unit within the National Park System, including plants, animals, and ...