What is it like inside an Egg?

[BuffaloParrot]

A developing bird is confined inside a shell for 14 to 60 days or more.  How does it eat, breath, and get rid of wastes?
*The yolk of the egg is the nutrition, consisting of about 50%water, 32% fat, 16% protein, and 2% carbohydrates.
*The shell has between 6,000 and 12,000 minute pores, so excnange of carbon dioxide and oxygen is easy.
*Waste products pose the most severe problem because accumulation of them could be toxic in this confined space.  Instead, they are stored in a special membrane called the allantois until hatching. 

[wishforabird]

I wondered about the waste products, I assumed they didn't have waste until birth, like humans ???  that is really cool.

[Jadesmom]

That is interesting, but you forgot to mention the tiny piece of ham and dab of Hollandaise sauce in there.  Now I want Eggs Benedict.