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The bird skeleton is highly adapted for flight. It is extremely lightweight but strong enough to withstand the stresses of taking off, flying, and landing. One key adaptation is the fusing of bones into single ossifications, such as the pygostyle. Because of this, birds usually have a small...
The skeleton of Sapeornis has several unique feature, such as a distinctively elongated fenestra on the proximal end of the humerus, a robust furcula with a distinctive hypocleidum, and an elongated forelimb. Sapeornis exhibits a combination of derived and primitive features, including a short, ...
c.A piece of bone. 2.bones a.The skeleton. b.The body:These old bones don't do much dancing anymore. c.Mortal remains:His bones are buried up on the hill. 3.An animal structure or material, such as ivory, resembling bone.
Birds are one of the few animals that have developed the ability to fly. Every part from the skeleton to the feathers has evolved to aid in flight. The skeleton, while using the same general design of other vertebrates has some distinct differences. The skull is very light in proportion to...
Bone performs a variety of functions: it has a structural and mechanical role; it protects vital organs; it provides a site for the production of blood cells; it serves as a reserve of calcium. See Connective tissue There are two types of bone in the skeleton: the flat bones (for ...
A bird's skull is extremely light in proportion to the rest of its body because birds don't have heavy jaws, jaw muscles, and teeth that are common to other animals. In contrast to the rigidity of a bird's skeleton, the neck is extremely mobile. This allows a bird to see danger fro...
The majority of an animal’s body is made up of water, cells and a protective or supportive structure such as a skeleton made out of bone or a hard outer shell to protect it. There are numerous processes that occur in an animal’s body consistently and together such as circulation and ...
Women in the Origins of Modern Science, Harvard University Press, Cambridge and London, 1989; Londa L. Schiebinger, `Skeletons in the Closet: The First Illustrations of the Female Skeleton in Eighteenth-Century Anatomy', Representations,... Katz,Sandra Beth - 《Jama the Journal of the American...
1.any air-breathing vertebrate of the class Reptilia, characterized by a three-chambered heart, a completely bony skeleton, and a covering of dry scales or horny plates: includes the snakes, lizards, turtles, crocodilians, and various extinct forms. ...