This is the Virginia opossum, a tree dweller found throughout many of the southern states. It's the only North American marsupial. The young are born premature and matured in the mother's pouch. And its only close relatives today are found in Central

发表于:2018-12-27 / 阅读(33) / 评论(0) 分类 探索与发现2013年

It is incredible, and it is incredibly hard to believe too, because although we've changed so much, we don't actually see any of those changes happening. Generation after generation, we just look the

发表于:2019-01-02 / 阅读(135) / 评论(0) 分类 生命物语

By David McAlary Scientists have discovered fossils of an ancient, tiny species of human in an isolated part of Indonesia. They are bones from what they say is a smaller version of the now extinct imm

发表于:2019-01-03 / 阅读(48) / 评论(0) 分类 VOA2004(下)--健康科技

The history of the Chinese perfume pouch (commonly called Xiangbao, Xiangnang, Xiangdai or Hebao) can be traced back to the Duanwu Festival, or Dragon Boat Festival, which falls on the 5th day of the 5th lunar month. It is said that people in ancient

发表于:2019-01-08 / 阅读(34) / 评论(0) 分类 英美文化

New Species Might be Human Ancestor Fossils found in a South African cave might belong to a new species of early humans that holds a unique place on the evolutionary road to modern man. On a 2008 mapping expedition in Malapa, South Africa, American p

发表于:2019-01-13 / 阅读(66) / 评论(0) 分类 VOA标准英语2011年(九月)

The United Nations Assistance Mission for Iraq has released its 13th human-rights report, which covers the first six months of 2008 and shows a marked drop in violent attacks by militias or criminal gangs in the country. But Lisa Schlein reports for

发表于:2019-02-07 / 阅读(74) / 评论(0) 分类 VOA标准英语2008年(十二月)