Yes.
Blue
from an egg
Yes they are. They are needed to fertilise the egg.
The shell of the egg is made of the same stuff as the inside layer of a tooth.
1
egg, then duck
It helps it to get out of the egg when it is hatching. It is not a tooth in the proper sense and in most cases it is lost after hatching.
a duck egg is bigger quails eggs are very small.
A baby chick typically loses its egg tooth within the first few days after hatching. The egg tooth is used to break through the shell during the hatching process, and once the chick is out of the egg, it is no longer needed.
the egg tooth it takes 21 days
Yes, a bird's egg tooth is a temporary structure used to help the chick break through the eggshell during hatching. The egg tooth typically falls off or is absorbed shortly after hatching, as it is no longer needed once the chick has emerged from the egg.
Baby alligators have one egg tooth when they're born that helps them to get out of the egg