Redwoods can live exceptionally long lives, with the average being around 600 years and the oldest coast redwood living to 3,200 years. There are two main types of redwoods - coast redwoods and giant sequoias. Many animals rely on redwoods for habitat, including moose, banana slugs, bears, and salamanders. The document provides information on the lifespan of redwoods, the different types of redwood trees, and some of the animal species that inhabit redwood forests.