Every year, between 15000 and 18000 new animal species are identified and classified around the world using the most recent DNA tests.
Extinct and even unknown creatures are still discovered, as one might expect. So, what happens when legends come true?
Native Americans in North America carved totems and told stories about unusual beasts like Thunderbirds. The animals are only stories, and they are described as enormous birds capable of causing thunderstorms.
They were servants of the Great Spirits of the World and resided on lonely mountain summits. At the same time, these monsters were feared and revered.
Pterandonon, a type of Pterosaur that contained some of the largest flying reptiles, is now connected with these species. In North America, fossilized remains were unearthed.
Even though these species vanished millions of years ago, there is evidence that residents of the North American region recorded multiple events involving huge birds with lizard-like traits more than 200 years ago.
Other evidence includes photographs from the American Civil War in 1864, which show a massive bird standing beneath the feet of six American troops.
Another report from 1977 featured three Lawndale, Illinois, youngsters. They described being pursued until one of their friends, Marlon Lowe, was seized by a large bird.
As you can see, there is an increasing amount of evidence of weird creatures we thought were extinct. However, as time passes and new technology are developed, more and more unknown and inconceivable animals will be uncovered.