This two-headed red slider turtle, now living at Big Al's Aquarium Supercenter in Pennsylvania, is particularly rare because the heads are on opposite sides of the shell. From The Metro:
Jay Jacobi, the shop's exotic reptile manager, said: "The two heads seem to have their own thoughts, operating independently.Link (via Fortean Times)
"But sometimes they seem to put their two heads together and move in the same direction, feed together, walk together."
David Pescovitz is Boing Boing's co-editor/managing partner. He's also a research director at Institute for the Future. On Instagram, he's @pesco.