The tallest tree in the world is almost three and a half times longer than the biggest animal ever found, a blue whale. The biggest tree in the world weighs three and a half times the heaviest blue whale ever found. The bright orange color of the sequoia bark comes from chemicals inside the tree called tannins . The tannins make the tree resistant to fire and insects. Sequoia seeds are about the size of a grain of oatmeal.
Squirrels eating the pine cones often free the seeds from inside.