" The blow killed Babe and Paul Bunyan both, and after that Paul had to admit that he was beat.
But his own bacteria ate him, naturally, and they crawled all around down on the bedrock and under the megaregolith, down there going everywhere, sucking up the mantle heat, and eating the sulfides, and melting down the permafrost. And everywhere they went down there, every one of those little bacteria said I am Paul Bunyan. "

― Kim Stanley Robinson , Red Mars (Mars Trilogy, #1)