Cockroaches exhibit a preference for warm and humid environments, originating from tropical and subtropical regions. Their adaptability arises from being scavengers, allowing them to thrive in diverse environments. Cockroaches display an omnivorous diet, consuming almost anything, with a preference for grease, meat, sweets, and starches. Additionally, they may feed on unconventional items like glue, materials in book bindings, and dead skin flakes. Some species, like the German Cockroach, even resort to consuming their own offspring.

Female cockroaches produce egg capsules containing varying numbers of eggs, ranging from 4 to 60, depending on the species. While some cockroach species carry the capsule until the eggs are ready to hatch, others deposit it in a secure location for development. Upon hatching, the nymphs resemble miniature adults, and cockroaches undergo molting to shed their skins as they grow. The development from egg to adult spans from two months to two years, contingent on factors such as temperature, humidity, and species.