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[–]FlippyKing 2 insightful - 1 fun2 insightful - 0 fun3 insightful - 1 fun -  (0 children)

Your parents are supposed to teach you all you need to know to tell the differences. Wait. You obviously are not old enough, or they would have told you already.

[–]Alan_Crowe 2 insightful - 1 fun2 insightful - 0 fun3 insightful - 1 fun -  (0 children)

The biological jargon is that the structures are homologous. Which is about embryology, not adults.

[–]TarshishJupiter 1 insightful - 1 fun1 insightful - 0 fun2 insightful - 1 fun -  (0 children)

No they're not the same thing, but they come from the same material in the womb. They become differentiated.