kē / xué / jiā / tōng / guò / guān / chá / yǒu / kǒng / chóng / de / wài / ké / lái / fēn / xī / hǎi / shuǐ / wēn / dù / de / biàn / huà科学家通过观察有孔虫的外壳来分析海水温度的变化。Scientists analyze changes in seawater temperature by examining the shells of foraminifera.