There are many kinds of animals that can lay eggs, such as platypus, sharks, crocodiles, turtles, turtles, chickens, ducks, geese, snakes, dinosaurs, ostriches, snails and pigeons.

Eggs are eggs laid by some land animals, and the embryos are covered with waterproof shells. Birds, reptiles, mammals, platypus and echidna all lay eggs. At a proper temperature, the eggs will hatch in a certain time, and the larvae will break out with the keratin above their mouths. Eggs are rich in nutrition and protein. Its price is low, and it can be made into stewed eggs, steamed eggs, boiled eggs, tea eggs, cakes and other delicious dishes. In addition, the egg white in eggs can also be used as raw materials for homemade skin care products. Therefore, it has been regarded as the best source of nutritional supplement since ancient times.