30+ Cool And Fun Egg Facts

The egg is the reproductive system for animals. The egg is an organism that contains the zygote of an animal. The egg develops the embryo until the animal hatches. Many animals lay eggs and from eggs born new animals. Many vertebrates, amphibians, a few mammals, and some other animals lay eggs. A needs a proper condition to hatch a new animal. Many animals have egg organisms inside their body. Eggs are mostly made of different sorts of protein. They are a source of food for humans and many other animals.

Eggs are one of the most fascinating things we can found in nature. They are of many different colors and sizes. From transparent to the hardest shell. Most animals we see out there are hatched from eggs. Birds, insects, reptiles, and fishes hatch from eggs. We eat chicken eggs almost every day in many ways. Though we know what is an egg there are many things about eggs that are unknown to us. Let's check out some of them.

There is an entire branch of science that focuses only on studying bird eggs. This science devoted only to know the study of eggs is known as Oology.

Eggs are one of the oldest reproduction mechanism for animals. The amniotic eggs that we see in most animals can be 340 million years old.

Paleothyris and Hylonomus are the oldest animals to lay eggs.

African driver ants are known to lay the most eggs than any other insect. They lay up to 3.5 million eggs every 26 days.

In fishes the female Sunfish produces 300 million eggs at a time, which is more than any other vertebrate.

Laysan albatross lays only one egg in the mating season which is known the lowest for any bird.

Eucypris virus is known to lay the toughest egg. Their egg can survive all the dry season and hatch after the water returns.

The shell of the ostrich egg is known to be the hardest eggshell. These eggs can take up to the weight of about 220kg vertically.

Almost 99% of all living animals reproduce through eggs.

Archaeological evidence shows that humans are consuming eggs from the neolithic age.

The word yolk means yellow.

The largest egg ever recorded is an egg of an elephant bird. The bird is extinct now.

In proportion to its own body kiwi bird lays the largest egg.

Hummingbird lays the smallest bird egg.

There can be eggs of birds without the yolk. Often yolkless eggs are the first egg laid by the animal.

The most common egg in the world is the chicken egg.

One of the most expensive food is caviar. Caviar is unfertilized wild sturgeon fish eggs.

Many fish species hatch their egg inside the mouth.

Common Surinam toad incubes eggs under the skin of its back.

Seahorses keep their eggs safe in their stomach pouches, not females but male Seahorses fulfill the duty.


Some fish species like the freshwater gar's egg is poisonous.

Bird eggs can be of many colors. They can be cream, paste, ivory, blue, reddish, and many others. They can have different larger dots, heavy splotches, or tiny flecks.

Some bird species like the cuckoo, lays an egg on other bird's nests.

Emperor penguin's eggs need to 2 months to hatch, the longest brooding time for any bird.

The eggs of a tree swallow are pink when they are freshly laid. But it changes the color to white within four days.

Owls lay the roundest egg.

Small passerines egg hatches only after 11 days of incubation.

Many snake species abandon eggs immediately after laying.

Snake eggs are soft and leathery in texture.

The largest specimen of any reptile egg ever recorded is an 11 inches long and 7 inches wide reptile egg. This egg was found in Antarctica and was laid at least 68 million years ago.

Domestication of birds for eggs started as early as 6,000BC in china.

In Greek myth there are mentions about the cosmic egg from what all humans and gods are hatched.

On a royal burial location in Egypt scientists found a 3,500-year-old stone chest. Inside the box, there was a ceramic box containing a goose egg and an ibis bird egg.

If an egg drowns in water the egg is rotten.

June 3 is National Egg Day in the United States.

October 11th is World Egg Day celebrated worldwide.

The IRANIAN BELUGA caviar is considered the most expensive edible organic egg. The delicacy costs 27,338 USD a kilo.

Bird eggs are hard to break vertically than horizontally.

The egg is a wonder of nature. Many species we see roaming around us and in nature have been born from eggs. Eggs are also a good source of protein and good food for us and many other animals. These are all we have on eggs today.