He says current knowledge of life on the ocean floor is especially limited.

VOA: special.2009.01.13

That is, until the great archaeological discoveries of the nineteenth and twentieth centuries, which unearthed for us the great civilizations of the Ancient Near East, of which I have drawn a remarkably life-like map ] here on the board: Mediterranean, I always start with the Mediterranean Ocean, the Nile River, the Tigris and the Euphrates.

直到十九至二十世纪,一些重大的考古发现，才让我们了解到,远古近东的文明,我已经在黑板上画了一幅,栩栩如生的地图了：,地中海，我总是从地中海讲起，尼罗河，底格里斯河，还有幼发拉底河。

耶鲁公开课 - 旧约导论课程节选

And,it explains how life on land depends on life in the ocean.

VOA: special.2009.04.03

"He was telling us, not only our family, but more and more the public, 'Don't use the ocean as a garbage can, as a universal sewer because it's a life support system.

VOA: standard.2010.06.18