A Better Pun: Arsenic and Old Lakes

I tried to make a pun in the title of my post about the NASA-funded discovery of a bacterium that adapted to not merely survive in an arsenic-abundant environment, but incorporate arsenic in its own chemical composition. But the blog The Deeps Of Time came up with a better one: “Arsenic and Old Lakes.” Well done! On behalf of pun-lovers everywhere, I salute you!