Add Yahoo as a preferred source to see more of our stories on Google. Getty Images Unless you are intent on making your own maple syrup, you probably haven't given tree sap much thought. So, let's ...

The University of Toledo has a class called Science and Policy of Foraging at the UToledo Stranahan Arboretum. This semester, ...

Tree sap is the sticky substance you sometimes see oozing out of tree trunks. Pure maple syrup is the most widely known edible sap product, derived from the sap of the maple tree, but there are many ...

Just as blood moves important stuff around the human body, sugary sap moves important things around a tree. My friend Nadia Valverdi told me all about it. She’s a researcher at Washington State ...

The annual tapping of regional trees is going on now. Two local growers share learned wisdom about how it’s done combining old and new techniques.

We may receive a commission on purchases made from links. It generally takes between 20 and 100 gallons of sap to produce a gallon of pure maple syrup. The exact amount can vary dramatically based on ...

Unless you are intent on making your own maple syrup, you probably haven't given tree sap much thought. So, let's take a deeper dive into a tree's 'blood' or sap and the normal flow in the fall for ...