And the revelations are gut punches. German cockroaches evolved in India? Scientists sampled DNA from 281 German cockroaches from 17 countries across all six human-inhabited continents.

The most common type of cockroach that you'll find in the United States is the German cockroach. Despite its name, these cockroaches are believed to have originated from either Asia or Africa.

The German cockroach is one well-adapted bug. All our attempts to wipe it out is only making it stronger. It's evolved to avoid poison bait laced with glucose — something few living things do.