雄蟑螂——哺育后代 甘食鸟粪
　　
　　Cockroach（蟑螂）： A father cockroach eatsbird droppings(鸟粪)to obtain preciousnitrogen(氮), which he carries back to feed his young.
　　不知道尽守父职的雄蟑螂，能否给名声扫地的蟑螂家族挣来一点点声誉？雄蟑螂为了哺育嗷嗷待哺的后代，会吃下鸟粪，仅为了给小蟑螂提取氮这一营养物质。