The title kind of says it all. Does anyone know?
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And for structural integrity.For ease of exiting the reproductive tract.
Great documentary on PBS. The Egg; The Perfect Invention. Either on Nature or Nova. Can't remember which one. The author goes into detail. And yes the egg flips and comes out big side first.Thank you! Now I know.
But that leads to another question that I should have included: Which end comes out first?