One of the greatest wonders of the world is the turning of an egg into a chicken. this process requires 21 days of incubation. It starts with an egg that contains the Egg white(Albumin) and the Yolk, the chicken egg starts as an egg yolk inside a hen. before laying the egg there is the fertilization process, division, and growth of the living cells. Then after the laying of the egg and during the incubation, the chick starts to form day after day then on the 21st day it is the hatching of the chick. It was a beautiful experiment that we did during the Developmental Biology course and it was interesting at the same time because we can see that beautiful miracle.
Some microscopic pictures that we took during the class:

