From egg color, nutritional enhancements, and common sizes, to sustainability, pricing, and production processes, here youÒ€ℒll find the information you need to make the most of your egg options. An egg is an organic vessel grown by an animal to carry a possibly fertilized egg cell Ò€ a zygote. Within the vessel, an embryo is incubated until it has become an animal fetus that can survive on its own, at Ò€¦