But hydra have neural nets of diffuse brain cells, rather than a dense organ-like we have.

但水螅有弥漫脑细胞构成神经网络，不像我们有一个密集器官。

Such are the persons who want to unchain the hydra of revolutions! --LE JOHANNISBURG, Pamphlet.

就是这样人想要解开革命！--LE JOHANNISBURG，小册子。

It was, like, kind of like the hydra's head.

它有点像。

This year, a group of Japanese scientists demonstrated that hydras sleep.

今年，一群日本科学家 证明了水螅睡觉。

Instead of a brain, hydras have nerve nets, the most basic nervous systems in nature.

水螅没有大脑，是拥有神经网络 ，这是自然界中最基本神经系统。

Can humans learn the secrets of longevity from the hydra, a tiny aquatic creature capable of indefinite self-renewal?

人类能否从水螅这种具有无限自我新能力微小水生生物身上学长寿秘诀呢？

The team followed more than two thousand individual hydras for a combination of 3.9 million days.

该团队跟踪了 2000 多只单独，总共跟踪了 390 万天。

See, hydra bodies are really simple: one head and one foot lined up along a single body axis.

看，水螅身体真很简单：一个和一只脚沿着一个身体轴排成一行。

And THAT is what I have been able to do that most hydras can’t.

这就是我能够做，大多数做不。

When you see a Source hydra panel, it looks a little bit like a normal solar module, except for just a little thicker.

Source 水力板看起来有点像普通太阳能模块，只是稍微厚了一点。

But there are a few exceptions to this get-older-and-die thing -- including, it turns out, tiny sea creatures called hydras.

但是， 这种变老和死亡事情也有一些例外——事实证明，包括被称为微小海洋生物。

The alignment of actomyosin fibers in the spheroid lays out a structure that gets inherited throughout the new hydra’s body.

球状体中肌动球蛋白纤维排列构成了一种结构，该结构在整个新水螅体内得遗传。

So how do hydras not decline with age?

那么如何不随着年龄增长衰退呢？

No decline in fertility, or increase in mortality, was observed at any point in the hydra life cycle.

在水螅生命周期任何时候都没有观察生育率下降或死亡率增加。

Like the mythical hydra, maybe this is a beast that never can be truly  slain with just chopping off its heads.

就像神话中一样，也许这是一种永远无法通过砍下来真正杀死野兽。

So these regenerated hydra were more deformed, and usually had multiple body axes – like two mouths and two feet.

所以这些再生加变形，且通常有多个身体轴——比如两张嘴和两只脚。

And hydra – the squishy tube-shaped freshwater animal, not the mythological sea serpent or Marvel villain – are really, really good at it.

——一种柔软管状淡水动物，不是神话中海或漫威反派——真非常擅长。

And even though hydra regeneration is a little more extreme, it’s similar to how we humans heal wounds and develop as embryos.

尽管水螅再生有点极端，但它类似于我们人类治愈伤口和发育成胚胎方式。

According to a study that came out this week from the Max Planck Institute in Germany, there’s another exception to this rule: the hydra.

根据德国马克斯普朗克研究所本周发表一项研究，这条规则还有另一个例外：。

Every cell in a hydra’s body is replaced every three to four weeks, by fresh cells produced by brand new stem cells.

水螅体内每个细胞每三四个星期就会被全新干细胞产生新鲜细胞换一次。