Why Cockroaches Are So Hard to Kill
Cockroaches are incredibly difficult to kill. Their specialized exoskeletons allow them to fit into crevices and tight spaces, and they do not have a single breathing organ. This makes them able to live for a month or more without food. It is even possible for them to survive without their head and still function. In addition, they have the capacity to regrow severed body tissue.
One of the reasons cockroaches are so hard to eliminate is that they have evolved to survive extreme temperatures. Even a nuclear blast won’t kill them. Cockroaches are also resistant to bug spray and shoe polish. This means they can withstand even the most powerful insecticides.
Despite the numerous insecticides on the market, cockroaches have a highly resistant immune system and gut bacteria that allows them to live in areas where the air is unclean. This means that if you spray your home with insecticide, your cockroaches are likely to develop a resistance to it after only one generation.
Cockroaches are so resilient that they can survive for weeks without their heads. Adult American cockroaches can live for two to three months without food, and can even survive in freezing temperatures. Moreover, they can survive for more than a month without water, which means they are very hard to kill.