单词：electro-positive element
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L: do you believe in UFO's? B: sure. A UFO is just a space vehicle from another planet. If you think about it, our space shuttles are UFOs. L: I've never thought about it like that before. B: I've seen photos of UFOs in America before, but they've al
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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
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By George Dwyer Washington 30 May 2007 Ivory-billed woodpecker A North American bird believed to have become extinct in 1944 has apparently re-appeared. The Ivory Billed Woodpecker was rediscovered in February 2004 when it was reportedly spotted twic
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By Phil Mercer Sydney 21 May 2008 Australian and U.S. scientists have successfully inserted a gene from the extinct Tasmanian tiger into a mouse embryo. They say the result has been bone and cartilage from the extinct marsupial developing inside the
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