A lifeline to other cells? Cryo-transmission electron microscopy captured numerous hairlike appendages radiating from the surface of this ultra-small bacteria cell. The scientists theorize the pili-like structures enable the cell to connect with other microbes and obtain life-giving resources. The scale bar is 100 nanometers. (Credit: Berkeley Lab) – See more at: http://www.astrobio.net/topic/origins/origin-and-evolution-of-life/first-detailed-microscopy-evidence-bacteria-lower-size-limit-life/#sthash.6q0a5ogd.dpu
