The discovery was made through computer imaging methods and an examination of an African wild dog that died of natural causes at an animal park.

这一发现是通过计算机成像方法以及对一只在动物园自然死亡的非洲野犬进行检查得出的。

Typically, these are recent imaging methods like CAT scan and PET scan and fMRI which, as I said before, show parts of your brain at work.

通常，这些是最近的成像方法， 如 CAT 扫描、PET 扫描和 fMRI，正如我之前所说， 它们显示了大脑的某些部分在工作。

He realized that the iron in the ancient ink would display if exposed to a certain x-ray imaging method and except for small portions of the text that couldn't be deciphered.

他意识到，如果暴露在某种X射线成像方法下，除了无法破译的一小部分文本外，古代墨水中的铁就会显示出来。