And we keep learning more and more about virophages and giant viruses.

我们对噬病毒体和巨型病毒的了解越来越多。

For instance, scientists recently uncovered a giant virus that had been buried for 30,000 years in Siberian ice only to find that it was still infectious.

例如，科学家最近发现了一种在西伯利亚冰层中埋藏了 3 万年的巨型病毒，结果发现它仍然具有传染性。