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Just when scientists they knew all there was to know about bacteria, they have something quite unexpected. They have that bacteria have a mechanism within their single-celled forms that can store and pass on memories to future generations. The research on the ubiquitous E. coli bacterium. This is one of Earth's most well-studied organisms. Researchers at the University of Texas about how bacteria could memories while lacking a brain: "Bacteria don't have brains, but they can information from their environment, and if they have that environment frequently, they can it and quickly it later for their benefit."

Bacterial memory from that in humans. It may more akin to our muscle memory. Our bodily tissue has a sense of what to do next from done it repetitively many times before. The researchers bacterial memory to levels of iron in their physical constitution. A researcher said: "Before there was oxygen in the Earth's atmosphere, early life was iron for a lot of cellular processes." He added: "Iron is not only critical in the origin of life on Earth, but also in the evolution of life. It sense that cells would it." He said his research could in combating bacterial diseases, as "the more we about bacterial behaviour, the easier it is to them".