The 5 flying animals that dominated the sky in the ancient world, the Haast Giant Eagle was at the top of the list, and the Pterodactyl was second

1. Haast Giant Eagle: 5 million years ago, the huge Haast Giant Eagle was once the ruler of New Zealand birds. The Haast Giant Eagle is a huge bird of prey with a wingspan of up to 3 meters. It can attack moa from the air, first knocking them down with their sharp claws (a wingless New Zealand bird that is now extinct and twice as tall as humans) and then tearing up its flesh.

2. Pterodactyl: Pterodactyl is one of the largest air overlords, and its membranous wings can reach a width of 10 meters when spread. This behemoth uses its limbs (hind legs and folded wings) to roam the sky. Pterodactyls were a very special type of reptile, capable of flying and most likely warm-blooded, and were the first vertebrates to be able to fly. Pterodactyls were close relatives of dinosaurs, both of whom lived in the same era and were the first reptiles to fly into the blue sky. Pterosaurs originated in the Late Triassic period, about 220 million years ago, and were extinct at the end of the Cretaceous period 65 million years ago. When dinosaurs occupied the landing ground, pterosaurs controlled the sky.

3, Argentine giant bird: this size comparable to the size of the aircraft carnivore is the largest bird that has ever existed on the earth, weighing up to 70 kilograms and with a wingspan of up to 7 meters. The Argentine giant eagle is considered to be the ancestor of modern large birds of prey such as storks and vultures.

4, Permian giant dragonfly: In the early Permian, the earth was warm and humid, and the trees were luxuriant. Hovering over today's Midwest swamps are giant insects the size of goshawks with wingspans of more than 70 centimeters, ready to prey on flies and even ancient amphibians.

5. Ancestors of geese: This goose-like giant bird belongs to the ancient giant birds of the Dasorni species, inhabiting the waters of Sepli Island on the southeast bank of the United Kingdom at the mouth of the Thames River, and its wingspan can reach 5 meters (16 feet) wide. They hunt like albatrosses: skimming over the water, suddenly catching fish or squid in the water during flight.