Those magnificent oak trees

The deciduous broad-leaved forests that now cover 11 percent of North America north of Mexico were, some 56 million years ago, in their infancy. There was only one oak species back then, but today we have some 435 oak species, with over half of all oak species are found in N/S America. Oaks today are what’s referred to as a keystone species, meaning they filter/clean air, sequester carbon…