In that, it would be like the epidemic of obesity which results from stone-age appetites meeting capitalist abundance.

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Our stone-age immigration system also means that too many workers, both skilled and unskilled, choose not to come to America to work.

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Or there is the apocalyptic version, where a world has been bombed back into the Stone Age -- and somehow still has laser weapons.

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For all the progress humankind has made in the last century, when it comes to assessing risk, we go about our business with thinking apparatus still largely custom-made for Stone Age life on the African savannah.

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The Flintstones, featuring two modern-minded couples living in the stone age, was the first animated series to be broadcast on prime-time television.

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Dr. Glanzer used a different technique in the Rockies: A wood frame supports a 1.5-inch-thick facade of fake stone colored and chemically distressed to give the illusion of age.

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It was not until 40, 000 years ago that they began to re-establish conjugal relations, possibly as a result of the technological revolution of the Late Stone Age, which yielded new and more finely crafted tools.

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"Seriously, I hope that you're not disappointed that there won't be a big coming-out speech tonight because I already did my coming out about a thousand years ago back in the Stone Age, very quaint days when a fragile young girl would open up to trusted friends and family, co-workers and then gradually, proudly to everyone who knew her, to everyone she actually met, " she continued.

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