In the list of the Top 10 Most Longest Living Animals In The World, African Elephant is at no 6.This is the 6th Most Longest Living Animal In The World and also on our list. The scientific name of this animal is Loxodonta. The world’s longest animal in the ocean is the lion’s mane jellyfish, based on the new study. These are slowly metabolizing, not in a dormant state. The 10 Longest Animals in the Ocean. What is the largest animal in the world? The longest animal in the world is the bootlace worm, it can be found along the coast of Britain. The longest specimen on record which was measured in Scotland in 1864 had a length of 55 meters. According to the new study, the blue whale has the lengthiest body among all the different whale species. Guinness World Records has records for everything from the largest dinosaurs and nature’s fastest and deadliest beasts, to skateboarding dogs, furry felines, leaping llamas and phenomenal farm animals. In this article, discover the 11 longest-lived members of various animal families, in order of increasing life expectancy. Animals living under natural conditions rarely approach their maximum possible age because of very high death rates due to infant mortality, diseases, predators, bad weather, habitat destruction, or competition for food and shelter. See related link for more detail.. Blue whales can grow to 100 feet (30.5 meters) long and weigh about 400,000 pounds (181,437 kilograms). What is the largest mammal to ever walk the earth? In order to find the 50 longest living animals in the world, 24/7 Wall St. reviewed data in the Human Ageing Genomic Resources database collection -- specifically, the AnAge animal … During the long journey they spend most of time in depth of ocean and return to exact location from where they started. Blue Whale. Some endoliths have extremely long lives. Though the Galapagos tortoise is perhaps better known, in another part of the world, the Seychelles’ Aldabra tortoise tends to survive even longer, often making it past age 150. What's the Biggest Animal in the World? They makes second longest migration among mammals, will travel 21000 kilometers every year. List of longest-living organisms Microorganisms. It can be found along the coasts of Britain. We humans like to pride ourselves on our long (and getting longer all the time) life spans, but the surprising fact is that, in terms of longevity, Homo sapiens have nothing on other members of the animal kingdom, including sharks, whales, and even salamanders and clams. On basis of every species lifespan living on this planet below is the list of top 10 animals which has the longest lifespan. When digging down the history of Earth, we can see some animal species manage to thrive upon THE different geological time span of Earth, developed before million of years ago.