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[....]" [Based on: Compact History Of The World, edited by Geoffrey Parker, copyright 2003, p.

[....]" [Based on: Article (Scientists unearth evidence that Ice Age giants originated in Tibet) cn 2011-09-04 - Editor: Wang Guanqun] NASA's Curiosity rover has [2013] uncovered signs of an ancient freshwater lake on Mars, which scientists say could have been a perfect spot for tiny primitive organisms to flourish if they ever existed on the red planet. P.] The watering hole near the Martian equator existed about 3.5 billion years ago around the time when life evolved on Earth. [NP] The skeleton, described in the British scientific journal Nature and National Geographic magazine, represents the first juvenile remains of these ancient humanlike creatures, making the fossil the oldest child by far ever found. From the waste down, the skeleton looks like a human's. Her brain was small, her nose flat like a chimpanzee's and her face long and projecting.

Scientists say the Martian lake was neither salty nor acidic, and contained life-friendly nutrients. Her finger bones were curved and almost as long as a chimp's.

NASA's older rovers Spirit and Opportunity found geologic evidence that water flowed during this time, but it was highly acidic and considered too caustic for life. P.] Scientists thought much of the planet had been awash in acidic water until Curiosity earlier this year found signs of an old streambed near its landing site with a neutral p H. [....] The oldest confirmed stone tools are less than 2.6 million years old, perhaps from only a little before the emergence of the genus Homo." [Based on: News Services article (Find rewrites history of tool use), p. [....] The fossil-hunting team happened upon the skeleton in 2000 in a region plagued by extreme heat, flash floods, malaria, wild beasts and occasional shootouts between rival ethnic groups. Researchers estimate the child may have been 3 years old. It is said to show that our ancestors had greater genetic diversity than previously believed and were spread far wider across Africa.