Looking Inside the Egg

When you’re incubating eggs, you may want to know what’s going on inside
them. If you’re new to incubation or you have children, you may want to
open an egg every couple of days and look inside. This will kill the embryo, of
course, but it gives you a fascinating look at the miracle of a chick forming in
just 21 short days — from a glob of cells to a baby chick that can run around
and feed itself. If you decide to open eggs and look inside, we suggest opening
them on the 3rd, 7th, 12th, and 16th days of incubation.
You may even want to set extra eggs so you have eggs to sacrifice for this little
biology lesson. You may hit some eggs that didn’t develop embryos, so set
even a few more. For example, if you intend to open four eggs, you may want
to start eight more eggs than you want to end up with.

If you don’t want to open eggs and sacrifice the chicks inside just for a biology
lesson, you’ll be relieved to know that you can get a glimpse inside without
opening an egg. In this section, we show you how.

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