Resilience. A cockroach can live for a week without its head and can hold its breath for 40 minutes. Some species can even withstand freezing temperatures.
Small size. Cockroaches are small pests, so they can easily hide in cracks and crevices. Male cockroaches can fit through an opening as small as 1/16 inch in width or the thickness of a quarter.
Quick speed. Cockroaches are very fast for their size and can run up to three miles in an hour. A newborn cockroach, which is about the size of a speck of dust, runs nearly as fast as its parents.
Irregular feeding habits. Cockroaches can survive for up to one month without food and two weeks without water. They are omnivores, so many types of food are attractive to them including sugars, proteins and fats.
Rapid breeding. A female cockroach and her offspring can produce as many as 30,000 cockroaches in one year.