A common theory for this unusual phenomenon is that the lemmings do not realize that the ocean is such a huge bodyofwater.
对于这种不寻常的现象,一个普遍的理论是,旅鼠没有意识到海洋是如此巨大的一片水域。
2
As the ocean warms, a bodyofwater called the Antarctic Polar Front—an upward movement of nutrient-rich sea that supports a huge abundance of marine life—is being pushed further south.
As the ocean warms, a bodyofwater called the Antarctic Polar Front—an upward movement of the nutrient-rich sea that supports a huge abundance of marine life—is being pushed further south.