Word: forme
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Dates: during 1970-1979
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...further espoused the idea in his 1863 Man's Place in Nature. Darwin won many new converts to his concept in 1871 with the publication of The Descent of Man. Most convincing of all, the fossil record continued to reveal that man had not always existed in his present form. That more primitive men might once have walked the earth was suggested when a skull was found at Gibraltar in 1848 that was more evolved than the skulls of apes but less so than that of modern man. Then in 1856, a similar skull, unearthed in the Neander Valley outside...
...East African sites, remains similar to those uncovered by Broom. They produced convincing evidence that the massive-jawed robustus, which weighed 45 to 67.5 kg. (100 to 150 lb.), existed in the region nearly 2 million years ago. In the same deposits, the Leakeys also discovered pebbles chipped to form sharp-edged implements?evidence that even so far back, man's ancestors knew how to make tools...
Scientists believe they are closing in on the time when this earliest form of man emerged. Fossil evidence shows the split that produced the first human must have occurred longer ago than 3.5 million years?the age of the oldest known Homo fossils, which were found in 1975 by Mary Leakey. Again, the rigorous demands of savanna living may have been responsible for the branching out. Australopithecus africanus, straining to augment its food supply in the flat grasslands, began to eat meat?probably obtaining it not by hunting, but by scavenging the kills left behind by large predators. Australopithecus robustus...
...bits of evidence that often raise more questions than they answer. Fossils, the souvenirs of ages gone by, have survived through a still incompletely understood process whereby minerals from the soil infiltrate and gradually replace the very molecules of bone or other hard tissues of an organism, leaving its form and many features preserved...
When penicillin and other antibiotics were introduced more than a generation ago, doctors felt they had finally won the fight against the most common form of bacterial pneumonia. But the tiny spherical pneumococcus bacteria have proved a stubborn foe. They are showing increasing resistance to drugs of all kinds, and bacterial pneumonia is again on the rise; it takes an estimated 25,000 lives a year in the U.S. alone. The bacteria are also a common cause of damaging middle-ear infections in youngsters and meningitis?a dangerous inflammation of the membranes surrounding the brain and spinal cord...