As some tiny insects and insect eggs, because of their tiny body and large quantity, it is difficult to count their Numbers with an expected accuracy by human being using naked eye.(對于一些微小昆蟲和蟲卵進行數量統計時很困難，因為這些昆蟲和蟲卵的個體很小，數量很大，人眼統計時準確率會明顯降低。)

Sir David Attenborough urged people to take part in a nationwide count of butterflies to help find out if the hot, dry spring has hit the insects.(大衛·愛登堡先生呼吁全國人民一起統計蝴蝶種類和數目，看看炎熱干燥的春季是否對蝴蝶的生存造成了影響。)