And I believe, many scientists believe In part, amphibians are good indicators and more sensitive because they don't have protection from contaminants in the water -- no eggshells, no membranes and no placenta.
科学者たちも私も 殺虫剤が主な原因だと信じています また両生類はとても繊細で 良い指標になります 殻や膜や胎盤で 保護されておらず