yes they do. but only while in the egg. the cord is connected to the yolk where it is able to feed. but when the chickens hatch, they dont have a umbilical cord. just a small space where it once was (only for a new born).
the chickens that i have dont.
When a chick grows in an egg it does have an umbilical cord connecting it to the yolk to give it nourishment while it grows. Once the chick hatches it will come off in...
Chickens lay eggs like this: Female Chicken meets male chicken. The two chickens express their love and an egg is "planted"in the female chickens bum. Later, she tries to poo, but instead comes out...
A chicken egg, when fertilized, does have the makings to become a chicken. However, the eggs you buy from the grocery store are not fertilized and are therefore, simply an egg.
The color of a chickens egg is dependent on their breed. Some breeds lay white eggs, and some lay brown. When an egg is being make inside a chicken the tint is the last part of the process; it's...
Because birds evolved to reproduce in such a manner. For birds, more of their offspring survived if they developed and birthed outside of the mothers body.