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The miracle of life: Understanding chicken eggs
The chicken or the egg? — if that got you thinking, it is better to see every option out, one at a time. For now, let’s stick to how chicks hatch from eggs. Well, it’s quite an exciting process! First, let’s talk about the egg itself. A chicken egg has a hard cover called a shell. Inside, there’s a yellow gooey substance called the yolk and a clear part called the egg white. The yolk has a small white spot, called the egg cell. If the egg is fertilised, this egg cell can turn into a chick while the egg white as well as the yolk provides nutrients to the growing embryo. As the chicken grows, it develops eyes, nerves, heart and other organs, before hatching as a chick.
What is incubation?
For an egg to hatch, mother hens usually sit on them to provide them with extra heat. This warmth is also provided by a machine called an incubator . The incubator keeps the eggs warm uniformly and a little bit wet. The eggs need around 21 days of this warm care to hatch.
Mother hens and incubators also need to turn the eggs around from time to time. If not done, this can eventually lead to the embryo sticking to the side of the egg, which can be fetal.
How do chicken eggs hatch?
On the 21st day, the egg starts to crack. But who makes the crack? The chick inside! The chick uses a tiny hard point on its beak called an “ egg tooth ” to break the shell. After making a small hole, the chick stops for some time. Then it starts turning and cracking the shell bit by bit. When the chick gets out of the shell, we say it has “hatched”.
Stages of chick development
Do you want to know what’s happening inside the egg before hatching? Let’s see. The yolk turns into a chick slowly. On the 5th day, the chick’s heart begins to beat. By the 10th day, the chick gets a beak and starts growing feathers. On the 18th day, the chick stops growing. It now gets ready to hatch.

Taking care of newborn chicks
When the chick hatches, it’s very tired and wet. Soon, it dries off and becomes fluffy. Now it’s time for us to take care of it. Chicks need warmth, so we can use a heat lamp. They also need food and water. Baby chick food is available at stores. The chicks grow quickly. Within 6 weeks, they are big enough to live outside.
Watching chicks hatch is like watching a small miracle. It’s hard to believe that a small yellow yolk can turn into a fluffy, lively chick. But that’s the wonder of life! I hope this article helps you understand how chicks hatch and how to take care of them. Have fun observing this amazing process.
Can supermarket eggs hatch into chicks?
An interesting question you might have is, “Can a chick hatch from a supermarket egg?” The short answer is, it’s very unlikely.
Why is that so? Well, there are a few reasons. The first reason is that most eggs sold in supermarkets are not fertilized. Hens can lay eggs without a rooster. These eggs are like the eggs we humans have – they need to meet with a male’s cell (for chickens, this is called a sperm) to start making a new life. If a hen lays an egg without meeting a rooster, the egg will not be fertilized and a chick cannot grow inside it.
Most farms that provide eggs to supermarkets keep hens only, no roosters, so the eggs are usually not fertilized. Sometimes, farms that keep both hens and roosters might sell fertilized eggs , but these are not common.
But, let’s imagine you find a fertilized egg. Can it hatch? Again, it’s very unlikely. Remember the incubator that we talked about earlier? The eggs need to be kept at the right warmth and humidity to hatch. After being laid, the eggs should be kept warm all the time until they hatch.
Supermarket eggs are collected, cleaned, packed, transported, and then kept on shelves for days or even weeks. During this time, the eggs are not kept warm. This long period without the right warmth and humidity can stop the growth of a chick, even if the egg is fertilized.
In conclusion, while it’s a fun idea, hatching a chick from a supermarket egg is nearly impossible. It’s better to get fertilized eggs from a farm if you want to observe the hatching process.
Glossary
Yolk – The yellow part inside an egg that has all the materials needed to grow a chick.
Incubator – A machine that keeps eggs warm so they can hatch.
Egg Tooth – A hard point on a chick’s beak that it uses to break out of the eggshell.
Fertilized Egg – An egg that has been joined with a rooster’s sperm, which can grow into a chick.
Humidity – The amount of water vapor in the air.
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