The upcoming discussion will update you about the difference between ratitae and carinate. Difference # Ratitae: 1. Running birds. The wings are more or less degenerated and not used in flight. 2. The sternum or breast bone is keel less and raft-like. 3. The skull is dromaeognathous, i.e., the vomer is interposed between the palatines, the pterygoids and the basisphenoidal [...]
The upcoming discussion will update you about the difference between reptiles and birds. Difference # Reptiles: 1. The exoskeleton consists of horny epidermal scales, sometimes provided with bony dermal plates. 2. The central of the vertebrae are usually procoelous. 3. Sacrum when present, its vertebrae (usually two in number) bear large expanded ribs, with the ends of which the ilia [...]
In this article we will discuss about the classification of class aves. 1. Body has three distinct divisions with a flexible neck and covered with feathers of different kinds for the most part. 2. Limbs two pairs, the anterior pair modified as wings for flight, and the posterior pair adapted for perching, walking or swimming. 3. Each foot is usually [...]