Which came first -- the chicken or the egg? Listen in as Marshall Brain gives the technical answer -- and takes a look at the science behind eggshell formation -- in this podcast from HowStuffWorks.com.
Learn more about your ad-choices at https://www.iheartpodcastnetwork.com

How Do Tiny Capers Pack Such a Big Flavor Punch?
06:35

What Do A.M., P.M., and SOS Stand For?
09:18

How Do Fainting Goats Work?
09:04