Seeking the Wisdom of the Ancients: Microbial Mats and Biosignatures
Seeking the Wisdom of the Ancients: Microbial Mats and Biosignatures
http://www.spaceref.com/news/viewpr.html?pid=16910
"Microbes cluster in communities called microbial mats. These are cities of cells, living in symbiosis. Microbial mats can be found anywhere. They inhabit dry places, salty places, hot places and cold places. They can be found in the cracks and puddles uninhabitable by multicellular organisms. They are familiar to many of us as the film on our teeth. Their history traces back at least 3.4 billion years - more than 10 million times the amount of time humans have existed and 3/4 of the time since Earth's formation."