German cockroach

Indoor environments, particularly kitchens and bathrooms near moisture and warmth.

Omnivorous scavengers feeding on starches, sugars, grease, and decaying organic matter.

Nocturnal, highly gregarious, and rapid reproducers that hide in dark cracks and crevices.

Major household pest that transmits pathogens, triggers asthma, and contaminates food, offering no significant ecological benefit indoors.