Eggs are a better source of iron than chicken, which is needed for oxygen transportation, growth, energy production, hormone synthesis, and neurological development.

The once-humble staple has become the ultimate symbol of human consumption.

It's the age-old riddle that has baffled scientists for hundreds of years. But experts may have finally cracked the conundrum of whether the chicken or egg came first.

A giant chicken egg that made national news has been cracked open to reveal another perfectly formed, normal-sized egg inside. The 180-gram egg — which is heavier than a Major League baseball ...

This is where the egg comes in. PhD student Tariq Bhat removes chicken embryos from an incubator at his lab, which keeps the contents at 37 C.