The giant sequoia, scientifically known as Sequoiadendron giganteum, is one of the largest tree species in the world. These trees can grow over 300 feet tall and live for more than 3,000 years. They are primarily found in the western slopes of the Sierra Nevada mountains in California. Giant sequoias have thick, reddish-brown bark that helps protect them from fire and pests. Their massive trunks can reach a diameter of over 30 feet. These trees play a crucial role in their ecosystem, providing habitat for various wildlife and contributing to the overall health of the forest.