Largest organisms one of the largest and oldest clonal colonies on Earth. Among animals, the largest species are all marine mammals, specifically whales. The blue whale is believed to be the largest animal to have ever lived. The largest land animal classification is also dominated by mammals, with the African bush elephant being the most massive of these. The largest single-stem tree by wood volume and mass is the giant sequoia ("Sequoiadendron giganteum"), native to Sierra Nevada and California; it typically grows to a height of and in diameter. Multiple-stem trees such as banyan can be enormous. Thimmamma Marrimanu in India spreads
Downward to the Earth to seven Nildoror to make them help him repair flood damage. He encounters his old colleague Jeff Kurtz (an addict of Naggiar venom), who had undergone the rebirth ceremony only to be turned into something monstrous. Nevertheless, Gunderson dares to subject himself to the rebirth ceremony, which brings him a new understanding of the native creatures and new powers by which he can heal Kurtz and impart his new-found knowledge to others. Downward to the Earth Downward to the Earth is a 1970 science fiction novel by American writer Robert Silverberg. It is a tale of the quest for transcendence