The researchers divvied up the cave sediment into 10 layers.

研究人员将洞穴沉积物分成 10 层。

This emboldened researchers to hunt for definitive evidence of past Denisovan life trapped in the cave sediment.

这鼓励了研究人员寻找过去丹尼索瓦人被困在洞穴沉积物中的确切证据。

When glacial ice melts, caving icebergs release sediments and particles into the seawater, initiating our ocean's food chain.

当冰川融化时， 冰山崩塌将沉积物和颗粒释放到海水中，从而启动了我们海洋的食物链。

But Massilani and his team have now unearthed more conclusive evidence by sifting through cave sediments, and sequencing the genetic evidence the Denisovans left behind.

但马西拉尼和他的团队现在通过筛选洞穴沉积物，对丹尼索瓦人留下的基因证据进行排序，发现了更确凿的证据。

That's because it is now possible to extract human DNA from cave sediments rather than searching for bones and teeth.

这是因为现在可以从洞穴沉积物中提取人类 DNA，而不是寻找骨头和牙齿。