To keep both sides warm!
so that their baby's will develop properly , if your told its to keep them warm its wrong , ( birds sit on the eggs to keep them warm).
When mealworm beetles turn into beetles, you can still feed them to geckos and birds. They will lay eggs until they die at 3-5 months of age.
No. Cows do not lay eggs, they give birth to live young. No mammal but the platypus lays eggs. Reptiles, Amphibians, Fish, and Birds lay eggs.
yes birds lay eggs
All birds lay eggs.
the humming birds are eggs because it is a bird All of the kind of birds is hatched from eggs
Birds lay eggs!
Yes, all birds lay eggs.
Birds hatch out of eggs.
Yes, they are birds and birds lay eggs.
No, birds lay eggs and their chicks hats from these eggs. Humming Birds are birds (it says so in their name) so they hatch from eggs.
To keep the yolk from sticking to the top of the shell, which could cause the chick to die.