Those splotches on rocks, tree trunks and twigs? Lichens! Lichens are actually a symbiosis between two major divisions of life, neither of which is a plant. And you can find them everywhere, as long as the air is not polluted.
Nature Moments�are produced by Nat Wheelwright and Wilder Nicholson, with help from Genie Wheelwright, Paul Benham, Tom Porter, and Rebecca Goldfine.
View all Nat’s Nature Moments videos�– and subscribe to receive them in your inbox (select “Maine’s Naturalist”).
