Being infected by hookworms, roundworms, bacteria like H. Pylori and other pathogens, getting wounded from accidents or animal attacks, ticks, leeches and so on would all be great ways to lose blood and iron for paleolithic humans.

被钩虫，蛔虫，像幽门螺旋杆菌这样细菌和其他病原体感染，被意外伤害或动物攻击，蜱虫，水蛭等等都是旧石器时代人类失去血液和铁好方法。

Consider the nematode roundworm, the most abundant of all animals.

再看看线虫，它们是所有动物家族当中最为繁盛。

The doctors said the worm was a roundworm native to Australia.

这两名示，这种蠕虫是一种原产于澳大利亚蛔虫。

When used in trials on mice and roundworms, the drug improved both their healthspans and lifespans, and it's currently undergoing human trials.

当在小鼠和蛔虫身上时，这个药物能提高它们健康寿命和预期寿命，而且目前已经在进行人体。

That's the lesson from the tiny roundworm called C.elegans, long a workhorse in basic biology lab work.

这是从一种名为线虫小蛔虫身上汲取经，这种小物一直是基础物学实室工作主力。

And scientists found one type of flatworm egg and two types of roundworm eggs.

科学家们发现了一种扁虫卵和两种蛔虫卵。

These are parasitic roundworms. They live inside a human being's intestines.

这些是寄性蛔虫。它们活在人体肠道内。

It's like, you know, that little roundworm.

就像是你知道，那种小小圆形蠕虫。

Plus, the poop they leave behind can contain roundworms and other parasites, which can enter your lungs when you breathe or get tracked into your home by your pets.

此外， 它们留下粪便可能含有蛔虫和其他寄虫，这些寄虫可能会在你呼吸时进入你肺部， 或者被宠物带到家中。

One such study showed that certain roundworms retained behaviors that they had learned before they were cryopreserved after they were vitrified and revived.

其中一项研究明，某些蛔虫在玻璃化和复活后保留了它们在冷冻保存之前学到行为。

An M R I revealed a abnormality in her brain and the doctor who operated on it pulled out a live roundworm.

磁共振成像显示她大脑有异常，给她手术取出来一条活蛔虫。

Even Caenorhabditis elegans, a primitive roundworm made up of a few thousand cells, does something that looks an awful lot like it.

即使是秀丽隐杆线虫（Caenorhabditis elegans）这种由几千个细胞组成原始蛔虫，也会一些看起来非常相似事情。

Roundworm, hookworm, whipworm, schistosomiasis: infections from these species cause pain and discomfort.

蛔虫、钩虫、鞭虫、血吸虫病：这些寄虫引起感染会导致疼痛和不适。