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Well, surprisingly yes they do have breasts but not as we know it.

The term breast has been applied to the pectoralis muscles (pectoralis muscles are also in humans, it's a thick, fan-shaped muscle, situated at the chest-anterior of the body) which they use for flight. They don't have mammary glands which produce milk to feed young like mammals do. This is because do not give birth to living young but instead they lay eggs. The fact that birds lay eggs doesn't mean they could not have evolved with mammary glands however. Echidnas and Platypii are egg laying mammals with mammary glands but not nipples. They have ducts through which the milk is delivered.

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13y ago

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