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Old-growth redwood forest in western North America. Redwoods are the tallest trees in the world, wit
Rotating phylogenetic trees
Darwin observed that tortoises on islands that are arid tend to have saddle-shaped shells, allowing
This chart illustrates the “drip down” model of government. In this, politics is formed by the soc
In 1839 Mary Cragin, at the age of twenty-nine, became a convert to John Humphrey Noyes’s “communism
Trees provide ecosystem services to people