In fact, according to Ramel, for the cockroach, the sex act usually lasts about an hour. The female roach will produce an egg case containing 30 to 40 eggs four to eight times in her lifetime. Thus, every female can crank out over 300 offspring in their lives. Some species don't even need the male contribution to reproduce, they are parthenogenic and the females just keep producing more and more female roaches. There is one saving grace, though, thankfully, cockroaches are eaten by a wide range of small mammals, birds, reptiles, and amphibians.
Roaches are among the common house cat's favorite delicacies.
Even other insects like the cockroach mite feed on out little brown friends. It is important to note that, despite common belief, cockroaches are not associated with disease in the way fleas and mosquitoes are. So, they can carry disease creating germs by contact. I've defined roaches, looked at their role in the eco-system, so let me show you how the roach impacts us. This relationship soured when man began storing large amount of food.