Did you know there are more than 60,000 species of trees around the world? Trees are crucial to this planet. They provide oxygen to breathe and food to eat; while also helping prevent erosion and providing homes for wildlife. In Ohio alone, there are 100 species of trees including sycamores, maples, oaks and walnuts. Join Interpretive Naturalist Caitlin as she explores some of those native Ohio trees in the following video. .