‘sulphur-oxidising-bacteria2’

In search of ancient bacteria ... The scientists on a 2014 excursion to collect fossils near the town of Kuruman in South Africa's Northern Cape province. From left: Clark Johnson, University of Wisconsin, Madison; Aaron Satkoski, University of Wisconsin, Madison; Nicolas Beukes, University of Johannesburg, South Africa; Breana Hashman, University of Wisconsin, Madison; and Kira Lorber, University of Cincinnati. (Image: Andrew Czaja, University of Cincinnati)

In search of ancient bacteria … The scientists on a 2014 excursion to collect fossils near the town of Kuruman in South Africa’s Northern Cape province. From left: Clark Johnson, University of Wisconsin, Madison; Aaron Satkoski, University of Wisconsin, Madison; Nicolas Beukes, University of Johannesburg, South Africa; Breana Hashman, University of Wisconsin, Madison; and Kira Lorber, University of Cincinnati. (Andrew Czaja, University of Cincinnati)

In search of ancient bacteria … The scientists on a 2014 excursion to collect fossils near the town of Kuruman in South Africa’s Northern Cape province. From left: Clark Johnson, University of Wisconsin, Madison; Aaron Satkoski, University of Wisconsin, Madison; Nicolas Beukes, University of Johannesburg, South Africa; Breana Hashman, University of Wisconsin, Madison; and Kira Lorber, University of Cincinnati. (Image: Andrew Czaja, University of Cincinnati)