Word: upright
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...much longer journey for Adam and 15 of the village men - a six-month-long, 1500-mile caravan trek from their home in Timia, across the desert, to the salt oasis of Bilma. After collecting a load of Bilma's salt, which still occurs in the form of upright pillars as described in the Bible, the group will head south for Nigeria, where they will sell their cargo to Hausa traders. It is an age-old example of the "comparative advantage" theory of international trade: the salt farmers, the transporters and the traders each stick to what they do best...
Your cover story "How Apes Became Human" focused on discoveries that reportedly show man evolving from a chimplike creature into one that can stand upright on two legs [PALEONTOLOGY, July 23]. This piece was a slap in the face to those who believe God created man in his image. You failed to substantiate that evolution is anything more than an unproven theory. You may think creationism is also an unproven theory--it takes God-given faith to believe in it--but creationism is rarely presented in the media as an alternative theory of human origin. CLAYTON DONNELL Southampton...
Another plausible explanation for the success of bipedalism and the ascent of man is the need for defense and offense. Walking upright presented early man with a larger and fiercer profile to his enemies. It also freed his hands to use weapons and better attack his foes. This alteration provided humans with additional time to think, create and develop. BARRY STEVENS Arlington, Texas...
...story on the discovery of a new apelike human ancestor that walked upright induced monkeyshines in many of you. "Some of my forebears may have hung by their necks," chuckled a Los Angeles reader, "but none ever hung by their tails." A Kentuckian averred that "the evolutionary process has evidently gone into reverse. The scientists have devolved into baboons." And a South Carolina man hoped that "since TIME has firmly established our lineage, we may begin paying for our subscriptions in bananas...
...Kent State's Lovejoy, the real answer is sex. Males who were best at walking upright would get more of it, leading to more offspring who were good on two legs, who in turn got more sex. His reasoning, first proposed nearly two decades ago, goes like this: like many modern Americans, monkeys and apes of both genders work outside the home--in the latter case, searching for food. Early humans, though, discovered the Leave It to Beaver strategy: if males handled the breadwinning, females could stay closer to home and devote more time to rearing the children, thus giving...