It identified 58 new " mutational signatures, " or pieces of evidence leading to the causes of cancer.

它确定了58个新的“突变特征”，即引发癌症的部分证据。

And this comparison showed a clear signal of mutational meltdown.

这种比较显示了突变崩溃的明确信号。

And if the population is small enough, you can end up with a mutational meltdown.

如果人口足够少，你可能会以突变崩溃告终。

Now we'll never know if this mutational meltdown was the deciding factor in the Wrangel Island mammoths' eventual disappearance about 4000 years ago.

现在我们永远不知道这种突变崩溃是否是弗兰格尔岛猛犸象在大约 4000 年前最终消失的决定性因素。

While it makes me personally sad to picture a mammoth that couldn't smell flowers, that might not have come from the mutational meltdown.

虽然想象一头闻不到花香的猛犸象让我个人很难过，但这可能不是突变崩溃造成的。

In their final years, after having thrived in many parts of the world for millions of years, the very last mammoths that ever lived experienced what's known as a mutational meltdown.

在它们的最后几年， 在世界许多地方繁衍生息数百万年后，最后的猛犸象经历了所谓的突变崩溃。