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What's the advantage of having two nipples instead of just one, since women generally give birth to one baby at a time?

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In brief: Good question

That's a great question.
We have 2 kidneys, two testes/ovaries, two lungs. I guess the advantage is in having a back-up. That's a question well-suited for someone knowledgable in evolution or a related science.

In brief: Good question

That's a great question.
We have 2 kidneys, two testes/ovaries, two lungs. I guess the advantage is in having a back-up. That's a question well-suited for someone knowledgable in evolution or a related science.
Dr. Donald Shenenberger
Dr. Donald Shenenberger
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