What is the oldest species on earth?

We don’t know for absolute sure, but as far as we know, older even than the shark, the horseshoe crab, the endangered sturgeons, the Jelly Fish and second oldest the sponge, one species stands out as the oldest species still alive: Cyanobacteria.

These multi-cell organisms are thought to be 2.8 billion years old and were the first organism to utilize photosynthesis to produce oxygen which eventually helped all the other species along.

Above: Second oldest, the Jelly Fish. Oldest is Cyanobacteria, pictured below.

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