There are rumors about cockroaches being immortal, and immune to the effects of radiation. There is a popular myth that cockroaches would be the only surviving animal in the event of a nuclear holocaust.
The truth is that although cockroaches are very hardy animals, they’re hardly immortal. They can survive in almost any environment because of their ability to eat almost any organic substance for food.
They are omnivores and can eat any plant or animal-based food source. They are 8 to 15 times more tolerant of nuclear radiation that are humans, but are not immune to it. A cockroaches full life span, if it lives to see it through, is roughly from 18 to 24 months.
A cockroach may seem immortal because of his ability to survive on very little, and also his uncanny ability to travel undetected in the darkness in search of food and water. But this notion of a cockroach being immortal is a myth and not based on fact.
If you have a cockroach problem and are finding it difficult to get rid of them, there are several steps you should take. I have written several articles on the subject which should be linked below for your reference.