Reaching an age of 90 is considered to be an accomplishment in humans. However, 90 years is a blink of an eye in some animals. There are some animals which have lived on for thousands of years and are direct descendants of dinosaurs, which is why they are sometimes called living fossils. There are animals which were alive during the two world wars, the age of colonization, and even the crusades. They are the true witnesses to history. Tuatara, 110 Years Old The Tuataras are native to New Zealand and even though they look like lizards, they are actually the direct descendants of the dinosaurs that lived on Earth 200 million years ago. While they are now listed under endangered species, the creatures are known to have a long life, some even living up to 110 years old.