Retrieving a Stromatolite from the Sahara Desert | AMNH https://www.amnh.org/learn-teach/curriculum-collections/earth-inside-and-out/retrieving-a-stromatolite-from-the-sahara-desert
Why did museum scientists travel to the Sahara to retrieve a boulder? This stromatolite was built by microbes, the only life that existed on Earth until about a billion years ago.
Pinkham PROFILE: Jane Goodall PROFILE: Abebe