Ep 12: Breath of Fresh Air

We’re going back to a time when air was toxic and the only visible organism that inhabited this world were Stromatolites whose exhalations would be their undoing and our greatest success. Travel back in time with me to billions of years ago.

This episode what written and hosted by Natalie Shoemaker.

**Source:** Stromatolites (Hoyt Limestone, Upper Cambrian; Lester Park Road outcrop, W of Saratoga Springs, New York State, USA) 07
**Author:** James St. John

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