Does a chicken lay eggs while it is hatching another egg?

No, chickens don't lay eggs while they are hatching another egg. Here's why:

* Incubation: Chickens sit on their eggs for about 21 days to incubate them. During this time, they don't lay any new eggs.

* Egg Development: Egg production takes time. A chicken's ovaries need time to develop a yolk and the egg needs to pass through the oviduct before being laid. This process doesn't occur while the hen is focusing on hatching.

* Hormonal Changes: The process of incubation causes hormonal changes in the hen, suppressing egg laying and focusing her body on hatching.

It's important to note that chickens can lay eggs after they have hatched a clutch of chicks. Once the chicks are independent, the hen will start laying again.