Word: skullful
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...tooth fragments, they can't say for certain which species the fossil belongs to. By 1.9 million years ago, the Homo line had spawned at least two branches: Homo habilis and Homo rudolfensis. The new fossil resembles both species in some ways, but without a more nearly complete skull it's impossible to say more. "What we have now is a hypothetical human lineage with very little evidence on it," says anatomist Alan Walker of Pennsylvania State University. "This new fossil is another piece in the developing story...
...find, made in 1994 but announced only last week, is important for a couple of reasons. First, the manufacture of stone tools is considered a key characteristic of the Homo line--something, along with brain size, skull shape and other anatomical features, that separates humans from less-than-humans. That has never been proved, though: the oldest known stone tools date back perhaps 2.5 million years, but they were found without any fossils around and could have belonged to anyone. And the oldest Homo fossils with universally accepted dates--until now, that is--date back only 1.9 million years...
...idea that the grand tragedy of aging and dying might be nothing more than a body-wide process of caramelization was humbling, but more research provided still more proof. Studies of the collagen sac between the brain and skull in diabetics and the elderly turned up brown pigment characteristic of advanced glycosylation. "The glycosylation process is like the free-radical process," says Dr. Robert Butler, head of the International Longevity Center at Mount Sinai Medical Center in New York City. "It's a natural phenomenon that keeps us alive but also helps lead to aging...
...acknowledge death, marchers wore skull masks or painted their faces to look like skulls...
...defining memory of Halloween is gazing out at a turnip skull with its blazing blue bottle eyes," he says. "I was terrified by my own creation...