The redwood, which can grow to 275 feet tall, has remarkably shallow roots—often only 5 or 6 feet deep. It seems to violate the laws of physics that they can stay upright for hundreds—even thousands—of years. That is, until you know one more fact: the redwoods grow in thick groves because their shallow roots are intertwined and, over time, fuse together. They start out as individuals and become one with others as they mature and grow.
