translation.en: By 10,000 years ago, they had disappeared from New Guinea, and unfortunately, by 4,000 years ago, somebodies, we don't know who this was, introduced dingoes -- this is a very archaic kind of a dog -- into Australia.
translation.zh: 一万年前，它们从新几内亚 消失了。更不幸的是， 四千前，某些人， 我们也不知道是谁，把野狗 --这是一种自古就有的狗--引入了澳洲。