Sap is the 'blood' of a tree, helping to move nutrients from the roots to the limbs. Some sap is not unusual, but excessive ...

All in all, trees contribute to an amazing number of things! They help our bodies, our minds and our communities, despite us ...

For months, foresters and researchers have been investigating reports of ailing pine trees in Arkansas. New diagnostic lab results help tell part of the story, but researchers are continuing to ...

New research from Griffith University has measured individual tree heights across 3.1 million hectares in the New South Wales ...

Challenging UNDATED (CNN) -- The first time Sam Van Aken saw tree branches being grafted and grown onto other trees, he likened it to Frankenstein. Yet, when the process became a full-time fascination ...