Miriam points to this set of pictures of the development of the chicken embryo. As I have written before, I did have to learn how to precisely stage the chick embryos, both the older stages and the early stages, in order to manipulate them at exactly the right time. Cool pics.
More like this
Don't you just love those photo series of the young'uns at different ages?
My previous contributions to the basic concepts in science collection were on gastrulation and
Along similar lines, you might appreciate this atlas of quail development:
http://131.215.15.121/
Coturnix in the 4th dimension.