Check out these two wonderful posts over at Pharyngula: Mother's milk, and Breast beginnings. The latter explains a (currently speculative) theory about the evolution of breasts.
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Would you like to comment on this post (or, in response to one of the comments)? If so, please note:
1. This blog does not allow anonymous comments (any more), so please use an open-id account to comment.
2. Comments on posts older than 15 days go into a moderation queue, and may take some time to appear.
Thank you for joining the conversation. Have your say: