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 ...

TOLEDO, Ohio (WTVG) - The University of Toledo has a class called Science and Policy of Foraging at the UToledo Stranahan Arboretum. This semester, they are harvesting tree sap and making maple syrup ...