Birds could be 60 million years older than thought

Tracks believed to be the work of small, scampering dinosaurs may have been made by birds, pushing back the date of the evolution of flight by 60 million years, scientists believe.
Birds first appear in the fossil record about 150 million years ago, when winged species such as Archaeopteryx evolved from a group of small, carnivorous, bipedal dinosaurs known as theropods.
However, in the past few decades, experts have noticed that ancient footprints, dating from much earlier, look surprisingly similar to bird tracks.
Now an AI model, deve