We may have been physically able to speak
從生理上說 我們那時就可以說話了
but linguists believe
但語言學家認為
it's more likely that the birth of language coincided with
語言的產生應該是在五萬年前
the proliferation of man-made objects around 50,000 years ago.
與人造工具廣泛流傳的時間相同
At this time there was an explosion in art and technology.
那時藝術和科技空前繁榮
We start to see, for the first time in the archaeological record,
我們可以看到考古記錄上首次出現了
lots of different tool types, lots of different implements,
各種各樣的大量工具
lots of different huts that people lived in
各種人類居住的棚屋
and so these things seemed to appear rather abruptly,
這些東西似乎是突然之間大量涌現
suggesting that there was some change in the way we lived.
表明人類的生活方式發生了變化
Many scientists think that the birth of language
很多科學家認為是語言的誕生
instigated this cultural boom.
帶來了那次文化繁榮
But without a time machine, we may never know exactly
沒有時間機器 我們可能永遠無法知道
when we started to talk.
人類開始講話的確切年代
But what we do know is why.
但我們能知道說話的原因
Mark Pagel believes that language
馬克·帕杰爾認為語言
probably developed as a practical way of defining roles
可能是作為定義社會角色的方式產生的
and it formed a kind of social glue.
并進而成為了社會的黏著劑