Medically reviewed by Renita White, MD Females are born with all the eggs they will ever have—about 1 million to 2 million at birth—and this number steadily declines with age. Jump to Key Takeaways.

With soaring egg prices and the need for a more self-sustainable way of life, raising hens may well be one of the best paths in many residents’ minds. Costly eggs, sustainable living?

Fraternal twins are the result of two separate fertilized eggs that develop in the womb at the same time. They each have ...