The mystery is unsettling to say the least, for it is known that amphibian species are extremely sensitive to environmental variations in temperature and moisture levels.

至少这种神秘失踪让人不安，因为大家知道两栖动物对于温度、湿度的环境变化极其敏感。

Under the influence of such changes, the living things on the earth will also change to adapt to environmental variation, such as sprouting in spring, growing in summer, alternation in late summer, ripeness in autumn and storage in winter.

生物在这种气候的变化影响下，就有春生、夏长、长夏化、秋收、冬藏等适应性变化。