Question

Compare the skeletal systems of humans and birds.​

Answer 1

Answer:

The arm bones of the human consist of the humerus, the radius and the ulna. These bones are also found in the bird. ... The main difference between the human and bird skeleton is that the bird's skeleton is adapted for flight. The bones of a bird are hollow which makes the skeleton lighter.

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Answer 2

Answer:

The main difference between the human and bird skeleton is that the bird's skeleton is adapted for flight. The bones of a bird are hollow which makes the skeleton lighter. ... A bird's sternum is large and positioned under the body - flight muscles attach to this bone. The ridge of the bird's sternum is called a keel.