Quetzalcoatlus northropi

Quetzalcoatlus, one of the largest pterosaurs to ever live, boasted an extraordinary wingspan of up to 36 feet and a body length of around 10 to 12 feet, with a lightweight structure designed for flight, featuring a long, toothless beak likely used for snatching small prey like fish, amphibians, and potentially small dinosaurs; its long, slender legs suggest it may have been capable of walking bipedally, possibly even running on land, while its soaring ability allowed it to glide for vast distances in search of food or to avoid predators, occupying a unique ecological niche alongside some of the most famous dinosaurs of the Late Cretaceous, such as Tyrannosaurus rex and Triceratops, before going extinct in the mass extinction event that wiped out the dinosaurs around 66 million years ago.