From giant parrots and feathered dinosaurs to really old poop and The Bone Wars to the difference between body fossils and trace fossils, here are some fun facts about fossils, adapted from an episode of The List Show on YouTube. 1. A fossil showed that parrots used to be 3 feet tall. In 2019, a paper published in the journal Biology Letters described the fossil of a parrot that lived somewhere around 16 to 19 million years ago. The bones were originally found in 2008, but they were misidentified as an eagle because no one assumed there would be a parrot that big. The bird, believed to be about 15 pounds, is now affectionately referred to as “squakzilla.”