If undaunted by the oysterâs rough, rock-hard, nearly-impossible-to-open shell, the undoubtedly famished first taster would then have confronted the gray, slimy, almost phlegmatic appearance of its plump body.
2 Answers. 0. The largest flying animals that ever lived were members of the Azhadrichidae family of pterosaurs, flying reptiles that lived around the same time as the dinosaurs, though they were not actually dinosaurs. The name Azhadrichidae comes from the word Ajdarxo, a dragon in Uzbek mythology.
1 The heaviest flying bird is the Kori Bustard of Africa, males of which can scale 18 kg.  The largest extinct bird was either the Elephant Bird of Madagascar (Aepyornis maximus) or the biggest of the Australian dromornithids (Dromornis stirtoni). The Giant Moa is not a contender, sorry.