Scientists discovered a record-breaking 16,600 theropod fossilized footprints in Toro Toro National Park, Bolivia, including 1,378 dinosaur swim tracks, the world's longest.These three-toed theropod tracks are approximately 60 to 66 million years old, offering a "fantastic window into the lives and behaviors of dinosaurs at the end of the Cretaceous period," according to paleontology expert Richard Butler.The discovery, documented over six years across nine sites, reveals detailed behaviors like speed and turns, with a striking absence of bones suggesting migration, and park officials anticipate finding thousands more footprints despite threats from human activities.