
Pelagornis is an extinct species of bird and is one of the largest flying birds. However, its size does not reach that of the largest pterosaurs, Quetzalcoatlus and Hatzegopteryx who remain the largest known animals to have ever flown. The species seems to have existed in the Oligocene up to the Pliocene. The causes of its extinction are unknown, but its time of existence, Miocene and Pliocene, corresponds largely to that of Megalodon, a large shark, and it may be supposed that their disappearance is perhaps related to the scarcity of their prey, large fish, itself related to the cooling of the climate during the Pliocene. Its wingspan is twice as great as that of the Wandering Albatross, which holds the record for living species today. His beak had sharp protrusions acting as teeth that allows him to seize, at the water's edge, the fish he feeds.