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New jaw fossils might suggest a direct line of descent between two species of early humans, including the one to which "Lucy" belongs. The 3.2 million-year-old Lucy, the earliest known hominid, was found in Ethiopia in 1974 by U.S. paleontologists Donald Johanson and Tom Gray. Lucy and her kind, Australopithecus afarensis, stood upright and walked on two feet, though they might also have been agile tree-climbers. Anthropologists have suspected an ancestor-descendant relationship between the Lucy species and a predecessor — Australopithecus anamensis — based on

US Democratic Senator John Kerry of Massachusetts, who had hoped to replace George W. Bush as president yesterday, instead sat in the cold and clapped as the Republican began a second four-year term. Iowa Democratic Senator Tom Harkin patted Senator Kerry on the back shortly before the inauguration Senator Kerry had hoped would be his. As Mr Bush delivered his inaugural address, Senator Kerry, about 10m away on the steps of the US Capitol, joined other lawmakers and the crowd in repeated applause. Senator Kerry looked relaxed, at times wistful. He frequently smiled, able to hide any disappointment over what...