Evolution of Glucose Aversion Cockroaches

Researchers, Ayako Wada-Katsumata, Jules Silverman, and Coby Schal, found that some German cockroaches have developed an adaptive behavior of glucose aversion. Glucose, a simple sugar, is used to cover the poison in man-made traps for cockroaches. The German cockroach has gustatory receptor neurons (basically taste buds) in their mouths. The researchers focused on the sweet and bitter gustatory receptor neurons.