In cases of spontaneous sex reversal, an animal born male can become female, or vice versa, due to genetic or hormonal changes. Learn the story of how one hen became a rooster in this episode of BrainStuff.
Learn more about your ad-choices at https://www.iheartpodcastnetwork.com

How Do Fainting Goats Work?
09:04

Does Smog Make Sunsets More Beautiful?
08:23

Why Does Albania Have Hundreds of Thousands of Bunkers?
08:00