Question

The bones of the bird are very heavy

Answer 1

Answer:

If you compare just the bones, the skeleton of a two-ounce bird is heavier than the skeleton of a two-ounce mouse. A bird's bones are denser. This density makes these thin, hollow bones stiffer and stronger to keep them from breaking. Crisscrossing struts or trusses also provide structural strength.

Answer 2

Answer:

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