Quetzalcoatlus was one of the largest flying animals ever known, living around 70 million years ago in the Late Cretaceous period. It was a giant pterosaur with an estimated wingspan of about 10–11 meters, making it taller than a giraffe when standing on the ground. Despite its huge size, it could fly using its lightweight, hollow bones and likely relied on powerful launches and thermal air currents to stay aloft. It had a long, pointed beak and probably fed on small animals, fish, or carrion depending on availability. On land, it may have walked with long limbs, behaving more like a stalking predator or scavenger, and it represents one of the most extreme examples of size evolution in flying animals.