Gigantopteryx
Gigantopteryx is a genus of large, flightless birds that lived during the late Miocene epoch, approximately 10 million years ago. The genus is known from fossils found in Europe and Asia, with the most complete specimens coming from Germany. Gigantopteryx is notable for its enormous wingspan, which could reach up to 12 meters (39 feet), making it one of the largest known flying birds. Despite its size, Gigantopteryx was likely a poor flier, with a body structure more suited to running and climbing than soaring through the air. The genus is represented by a single species, Gigantopteryx gigantea. The name Gigantopteryx means "giant wing," reflecting the bird's impressive wingspan. Gigantopteryx is believed to have been a scavenger, feeding on carrion and other available food sources. Its extinction is thought to be related to the climatic changes that occurred during the late Miocene, which may have made its preferred habitats unsuitable for survival.