In the case of the New Bedford killifish the situation is similar, but more complicated.

新贝德福德鳉鱼的情况类似，但更为复杂。

Dr Hahn is looking at a different animal, the killifish (pictured), in New Bedford harbour, Massachusetts, which was polluted by other producers.

而Hahn博士研究位于马萨诸塞州新贝德福德港口的鳉鱼（如图），这部分流域遭受到其他生产企业的PCB污染。

The African turquoise killifish jolts to life following a phase called diapause.

非洲绿松石鳉鱼在经历了一个称为滞育的阶段后突然苏醒过来。

Turns out, the African killifish is a perfect candidate to help answer the diapause-lifespan conundrum.

事实证明，非洲鳉鱼是帮助解决滞育-寿命难题的完美候选者。

Dr Hahn has, however, found nine places along the amino-acid chain of killifish AHR where the link in the chain varies between individuals.

但沿AHR的氨基酸链上有9个部位的链接存在个体变异。

Unlike in mammals, killifish embryos grow outside of the animal's body, which makes them easier to experiment on.

与哺乳动物不同，鳉鱼胚胎在动物体外生长，这使得它们更容易进行实验。

So the African killifish species has evolved to have its embryos enter diapause so that they survive the extreme dryness that follows these rainy periods.

因此，非洲鳉鱼物种已经进化到使其胚胎进入滞育状态，以便它们能够在雨季之后的极度干旱中存活下来。

New research into African killifish has shown that its period of diapause during embryo development has no negative effects on the lifespan of a fully developed adult.

对非洲鳉鱼的新研究表明，它在胚胎发育过程中的滞育期对发育完全的成年鳉鱼的寿命没有负面影响。