For the past five years, I've been researching, working with biologists and traveling all over the world to find continuously living organisms that are 2,000 years old and older.
在过去这五年里，我一直做这方面的研究， 同生物学家一起 周游世界 寻找至今仍生存的古老生物 它们至少有两千年历史或者更加久远。