How can birds lay eggs? Many people don’t understand it, but all birds that are female lay eggs, whether or not they usually have mated having a male.

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How can birds lay eggs? Many people don’t understand it, but all birds that are female lay eggs, whether or not they usually have mated having a male. Think of chickens—they lay all of the eggs we purchase in supermarkets for people to eat without ever also seeing a rooster. Exactly the same does ...