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Why do cochroaches always die on their backs? Or do they flip over while dying?CSM

Actually, C, cockroaches don't always die on their backs, it's just that a majority of the dead ones we New Yorkers see wind up that way. But why? There are a couple of reasons. A simple one is that if a cockroach accidentally falls or flips over, it will have a hard time righting itself on your smooth marble or linoleum floors. With no dirt or sticks and other objects to grab on to as it would find in the wild, it will likely struggle to flip over until it eventually dies.

Reason two is probably more common in apartments where an exterminator comes on the first Saturday of every month. According to this website from the U. Mass biology department (which answers quite a few cockroach-related queries, in case you're really curious), most insecticides used to kill roaches are organophosphate nerve poisons, which are essentially neurotoxins. Exposed to the chemicals, a cockroach will have muscular spasms. All that flailing can result in it flipping over and, as its nervous system has been compromised, the poor roach can not muster the coordination to turn over. What it does to humans, we don't know, but as we like to imagine Charlton Heston saying, the only good roach is a dead one.