Try and answer these questions

[MegaScientifical]

Actually, if you think about it, you get this:
First comes the predecessor to a chicken. Even if it lays eggs, the thing that comes from the egg is not a chicken.
This pre-chicken lays an egg, which will become the new species due to a genetic mutation.
Now, a real chicken is born from an egg laid by a non-chicken.
Now this chicken is free to lay eggs and keep the species alive.

Chicken

[Ad Bot]

[Anti-Block]

The Below boolean is false,
The Above boolean is true.

[John1701]

Actually, if you think about it, you get this:
First comes the predecessor to a chicken. Even if it lays eggs, the thing that comes from the egg is not a chicken.
This pre-chicken lays an egg, which will become the new species due to a genetic mutation.
Now, a real chicken is born from an egg laid by a non-chicken.
Now this chicken is free to lay eggs and keep the species alive.

Like i said