If you're talking about mammals, they do not lay eggs (except for the platypus in Australia). If you're talking about birds, which are all warm blooded, they lay eggs via the cloaca which is the all-purpose excretory channel. read more
If you're talking about birds, which are all warm blooded, they lay eggs via the cloaca which is the all-purpose excretory channel. This page may be out of date. Save your draft before refreshing this page. read more