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How do bird eggs develop and grow within the mother bird prior to her laying them?
Wiki User
∙ 12y ago
There is an embryo within the bird's reproductive track. This embryo eventually receives a tough calcium shell that hardens just before the bird is ready to lay the egg.
Wiki User
∙ 12y ago
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How do bird eggs develop and grow within the mother bird prior to her laying them!?
There is an embryo within the bird's reproductive track. This embryo eventually receives a tough calcium shell that hardens just before the bird is ready to lay the egg.
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