Word: never
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Dates: during 1990-1999
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...problem is, the "cure" for cancer is not going to show up anytime soon--almost certainly not in the next decade. In fact, there may never be a single cure, one drug that will bring every cancer patient back to glowing good health, in part because every type of cancer, from brain to breast to bowel, is different...
...million years ago. As Richard Wrangham, professor of anthropology at Harvard, points out, "Most mammals lose interest in sex outside a restricted mating period. For a female chimpanzee, copulation is confined to the times when she has a pink swelling on her rump. Outside those lusty periods, she would never think of trying to seduce a male, and he'd be horrified at the thought. But humans have taken a much more persistent view of sexual possibilities, probably since they first evolved as a species...
...already wiped out--and by that I mean driven nearly to commercial extinction or, in a few cases, the brink of biological extinction--more than 100 popular species of food fish, including Nassau groupers, Chilean sea bass, orange roughy and cod. What we don't know, what we'll never know, is how many undiscovered species have been eradicated along the way. What creatures, great and small, might have contained genetic or chemical secrets that could have saved lives or improved them, conquered diseases or averted them...
...influential forester Aldo Leopold wrote, "I am glad I shall never be young without wild country to be young in. Of what avail are 40 freedoms without a blank spot on the map?" Fifty-four years later, it's not so easy to find wild country to be young in. For now, however, a few tracts of wilderness still endure. We should be grateful for this and appreciate them as long...
...scientists at St. Gen who first grasped the significance of this discovery. The main technical objection to germ-line genetic engineering had been the premise that you could never know what effects an added gene would have until after the child was born. By that time, of course, it was too late to avoid unintended negative side effects. But if the gene already existed naturally in other people, you could study those people first to determine the gene's safety...