A cockroach can live for a week without its head. Due to their open circulatory system, and the fact that they breathe through little holes in each of their body segments, they are not dependent on the mouth or head to breathe. The roach only dies because, without a mouth, it can't drink water and dies of thirst.
A cockroach can hold its breath for 40 minutes, and can even survive being submerged underwater for half an hour.
A one-day-old baby cockroach, which is about the size of a speck of dust, can run almost as fast as its parents - who can run as fast as a human walks.
The world's largest cockroach (which lives in South America) is six inches long with a one-foot wingspan. Average cockroaches can vary in size from ½"- 2" long.
Because they are cold-blooded insects, cockroaches can live without food for one month, but will only survive one week without water.
Cockroaches have been around since the time of dinosaurs!
Some female cockroaches only mate once and stay pregnant for life!!
In some cultures, cockroaches are prized for their nutritional value.
The Greeks and Egyptians used ground or boiled cockroaches for medicinal purposes.
Myth has it that cockroaches can survive a nuclear attack. However, tests have found that though they are 6 to 15 times more resistant to radiation than humans, they would still not fare well...sorry Professor Armageddon.