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
The Long Earth (series) greater details. All share one similarity: on none are there, or have there ever been, "Homo sapiens" - although the same cannot be said for earlier hominid species, especially "Homo habilis". The books explore the theme of how humanity might develop when freed from resource constraints: one example Pratchett has cited is that wars result from lack of land, and he was curious as to what would happen if there was no shortage of land or other resources. The Long Earth (series) The Long Earth is a collaborative science fiction work by British authors Terry Pratchett and Stephen Baxter. Both