Organism that hasn't evolved in more than 2,000,000,000 years

Trippy, interesting if you’re into the evolution thing, though not particularly surprising.

Scientists discover organism that hasn't evolved in more than 2 billion years Feb 03, 2015 by Stuart Wolpert
The findings are published online today by the Proceedings of the National Academy of Sciences. The scientists examined sulfur bacteria, microorganisms that are too small to see with the unaided eye, that are 1.8 billion years old and were preserved in rocks from Western Australia's coastal waters. Using cutting-edge technology, they found that the bacteria look the same as bacteria of the same region from 2.3 billion years ago—and that both sets of ancient bacteria are indistinguishable from modern sulfur bacteria found in mud off of the coast of Chile.