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
Largest prehistoric animals litoptern was "Macrauchenia", which had three hoofs per foot. It was a relatively large animal, with a body length of around . The largest notoungulate known of complete remains is "Toxodon". It was about in body length, and about high at the shoulder and resembled a heavy rhinoceros. Although is not complete, the preserved fossils suggests that "Mixotoxodon" were the most massive member of the group, with a weight about . The largest-known oxyaenid was "Sarkastodon" weighing in at . The largest hyaenodontid was "Megistotherium" at 500 kg. The largest mesonychid was "Mongolonyx robustus". This predator would have been tall