Cockroaches nyob rau hauv lub tsev - ntsuas thiab qhov chaw ntawm unsanitary tej yam kev mob. Lawv muaj kab mob thiab txawm tom neeg. Nws pom hais tias cab tau noj cov pob zeb ntawm daim tawv nqaij ntawm tib neeg lub cev, thaum nws pw. Pom zoo, tsis yog ib qho kev zoo nkauj heev. Omnivorous parasites noj tsis tsuas yog crumbs, qab zib thiab lwm yam khoom noj khoom haus khib nyiab.
Qeb Cog txiv ntseej
Tsob ntoo yog ib qho ntawm ntau tshaj plaws nyob rau hauv lub genus Juglans. Mature dub ncuav nyob rau hauv North America ncav ib qhov siab ntawm 50 m thiab ib txoj kab ntawm 2 m Nyob rau hauv peb lub teb chaws, tsob ntoo yog cultivated los ntawm ob sab. XVIII xyoo pua. Cov neeg rau ntawm central Russia nyob rau hauv lub thib kaum tsib xyoo ncav cuag ib qhov siab siab tshaj plaws ntawm 15-18 m, thiab ib lub cev muaj zog ntawm 30-50 cm.