How do the bones of an adult human compare to those of an adult dog?

	Adult Human	Adult Dog
Number of bones	206	321
Number of vertebrae	33	50
Number of joints	over 200	over 300
Age of maturity	18	2
Longest bone	femur (thighbone)	ulna (forearm bone)
Smallest bone	ossicles (ear bones)	ossicles (ear bones)
Number of ribs	12 on each side	18 on each side

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