Chicks Hatch From World's First Artificial Eggs--A Breakthrough Key to Bringing Giant Birds Back From Extinction

[chouchou]

1. Evolution is such a wonderful thing..

"Designing an artificial shell is not easy because a natural shell is deceptively complex. Made principally of calcium carbonate arranged in a crystalline structure, a typical egg shell is no more than 0.4 mm thick, and covered with up to 17,000 tiny pores to allow for gas exchange with the ambient atmosphere—carbon dioxide out, and oxygen in. There are, too, a pair of slick inner membranes in the egg that perform another critical function, protecting the growing chick from invading bacteria. ."