未来的研究应该看看这些蠕虫的行为与生态学，以了解新物种的出现是由什么造成的。
Future research should look at the behavior and ecology of these worms to understand what caused the emergence of new species.
未来的研究应该看看这些蠕虫的行为与生态学，以了解新物种的出现是由什么造成的。
Future research should look at the behavior and ecology of these worms, to understand what caused the new species to arise.
田纳西大学生态学和进化生物学教授唐·史密斯说：“只有一小部分外来物种会在新栖息地引发问题。”
"Only a small percentage of alien species cause problems in their new habitats," said Don Smith, professor of ecology and evolutionary biology at the University of Tennessee.
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