In the 1980s, manufactures began making cockroach baits that combined sweet glucose with deadly insecticides. By 1993, many cockroach populations somehow developed an aversion to the bait. Now, 20 years later, scientists finally understand how the roaches beat these traps.
If fear is the mind killer, as Muad'dib explained, the routes for banishing those fears are equally devastating — it usually means confronting them. But a new Spanish study, using virtual roaches, might unlock a less grody path.