And the most likely molecule is the protein cryptochrome.

最有可能的分子是蛋白质隐花色素。

And so far, cryptochrome experiments have only yielded positive results in the presence of magnetic fields much stronger than Earth's.

而且到目前为止，隐色体实验只有在存在比地球强得多的磁场时才会产生积极的结果。

The other theory is that animals possess a protein in their eyes called cryptochrome which allows them to see magnetic fields.

另一种理论是，动物的眼睛中拥有一种叫做 " 隐色体 " 的蛋白质，它使动物能够看到磁场。

Intagliata: Which is one more piece of evidence that the cryptochrome protein might underpin the robins' magnetic sense.

Intagliata：这是隐花色素蛋白可能支持知更鸟磁感的又一证据。

Intagliata: But here's what they didn't know: How does that light-sensitive protein, cryptochrome, actually help the birds sense magnetic fields?

Intagliata：但他们不知道的是：这种光敏蛋白，隐花色素，实际上是如何帮助鸟类感知磁场的？

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.

磁场无形地穿过整个身体，所以研究人员不知道这些磁铁矿颗粒或隐色体会准确地附着在特定的细胞上，所以导致犯错。