This magnetite basically helps them to orient in the right direction.

这种基本上可以帮助它们以正确方向定向。

The turtles have particles of magnetite, a magnetic mineral, in their brains.

海脑中有颗粒，这是一种性物。

Like peanuts, magnetite is more dense and should sit at the bottom.

像花生一样，密度更，所以应该位于底部。

Sure enough, groups of magnetite grains had materialised on the treated squares, shepherded into place by the bacterial protein.

果然，" 棋盘" 上固定蛋白质区域产生了成群颗粒，并由细菌蛋白质控制相应位置。

The magnetite likely plays a role in orienting sea turtles to Earth's magnetic poles, similar to a compass.

可能将海定向到地球极方面起作用，类似于指南针。

The first theory is that animals have tiny magnetite particles in their bodies that act as magnetic receptors.

第一个理论是，动物体内有微小颗粒，作为感受器发挥作用。

Which, again, are magnetite. Over here are iron oxide.

又是。这里是氧化。

The very first magnets that anyone knew about were natural magnets called lodestone or magnetite.

人们所知道第一个是天然，称为石或。

Third, it just doesn't make sense that bacteria on Mars would produce magnetite.

第三，火星上细菌会产生是没有意义。

A lot of homing pigeons also have what is called magnetite in their beaks and magnetoreceptors in their nervous system or brains.

很多信鸽喙中也有所谓，神经系统或脑中有感受器。

Earth bacteria have the magnetite grains because they allow them to follow the Earth's strong magnetic field.

地球细菌具有颗粒， 因为它们使它们能够跟随地球强场。

It's much too weak to follow, which means that magnetite grains would be completely useless to Martian bacteria.

它太弱了，无法追踪，这意味着颗粒对火星细菌来说完全没有用处。

The same process could also explain why volcano scientists find that the mineral magnetite rises to higher layers in Earth's crust than would be expected.

同样过程也可以解释为什么火山科学家发现物地壳中能上升到比预期更高层。

For a start, the grains of magnetite are not strong enough magnets to make a useful memory, and the size of each domain (20 microns across) is huge by modern computing standards.

首先对于可用存储器来说，那些颗粒性还不够强，并且每个区域尺寸（20微米跨度）对现计算机标准来说太了。

Magnetic fields pass invisibly through the entire body so researchers don't know exactly where these magnetite particles or cryptochromes would be attached to particular cells and so mistakes are made all the time.

场无形地穿过整个身体，所以研究人员不知道这些颗粒或隐色体会准确地附着特定细胞上，所以导致犯错。

The researchers took their inspiration from Magnetospirillum magneticum, a bacterium that is sensitive to the Earth's magnetic field thanks to the presence within its cells of flecks of magnetite, a form of iron oxide.

研究人员从趋细菌上获得了灵感，由于该细菌内部存氧化物性颗粒，所以对地球场非常敏感。