Between 2.5 to 3.5 million years ago, our earliest ancestors made a huge leap in technology that eventually set us apart from the rest of the animal kingdom they began using stone tools. This advancement into the Stone Age allowed us to master our environment and become the advanced society that we are today. Scientists have always wondered how we made this progress. Now, thanks to an island of monkeys off the coast of Panama, we may have a clue as to how that was done. Locals have long known about Jicaron Island: the place where monkeys are smart enough to use tools. It wasn’t until last year, however, that researchers finally made the trip to look into the rumors.
介於兩百五十萬至三百五十萬年前，我們最早的祖先們在工藝方面有了重大的躍進，使我們最終有別於其他動物 ── 他們開始使用石製器具。這個邁向石器時代的進展使我們能夠掌握環境，使其成為我們今日的進步社會。科學家們一直以來想了解我們是如何達到這樣的進展。現在，多虧了一座巴拿馬近岸的猴子島，我們也許能有頭緒得知這是如何辦到的。當地居民長久以來已經知道，吉卡隆島這個地方的猴子聰明到懂得使用器具。然而，直到了去年，研究員們才終於踏上探究這些傳聞的旅程。
ancestor n. 祖先
On Tomb Sweeping Day, Taiwanese people follow the tradition of cleaning their ancestors’ graves.
leap n. 躍進；跳躍
Robots are considered to be a giant leap in modern technology.
clue n. 頭緒；線索
Jason did not have a clue about what Scott was saying.