Preparing for the Big Escape
- Day 16:Embryo turns beak toward air cell
The Chicks are Coming!
- Day 13:Appearance of scales and claws
- Day 14:Embryo turns its head toward the blunt end of the egg
- Day 15:Scales, claws and beak becoming firm
All better now!
- Day 12: Continued growth and movement
Just Do It
- Day 11:The beak is beginning to harden
Rollin', rollin' rollin...
Getting Stronger Every Day
Birds of Feathers
- Day 8:Beginning of formation of beak and egg tooth.
- Day 8:Feathers are beginning to form.
Seeing is Believing
- Day 5:Beginning of formation of reproductive organs and differentiation of sex.
The Genius Is In the Details
- Day 4:Beginning of formation of tongue
- Day 4: Eye is easily distinguished
The Genius Is In the Details
- Day 3: Beginning of formation of tongue
- Day 3: Amnion completely surrounds the embryo
- Day 3: Tail has appeared and wing and leg buds are visible.
Soon other organs such as the liver, kidneys, and lungs will appear.
The Heart of the Matter
- 25 hours: Beginning of formation of heart
- 35 hours: Beginning of formation of ear
- 42 hours: Heart begins to beat
The Journey Begins
- 18 hours: Appearance of alimentary tract
- 19 hours: Beginning of brain crease
- 20 hours: Appearance of vertebral column
- 21 hours: Beginning of formation of brain and nervous system
- 22 hours: Beginning formation of head
- 23 hours: Appearance of blood islands
- 24 hours: Beginning formation of eyes
