If the actors or their works do not exist, this implies an In Spite Of A Nail Alternate Universe. In a recent and amusing example, actress Jeri Ryan divorced her husband to play Seven of Nine on Star Trek Voyager (he refused to move to Hollywood with her). The divorce was contentious, and a lot of salacious dirt was spilled. When Jack Ryan ran for the U.S. Senate in 2004, the release of the documents forced him to withdraw, allowing his challenger to win in a landslide against a last-ditch replacement. The landslide victory propelled the challenger, Barack Obama, to a position from which he could then launch a campaign for President, and… well, you know the rest. But it probably goes differently in Voyager’s historical database.

“China is basically a market that has the ability to clone everything,” said Beijing-based researcher Edward Yu, CEO of Analysis International.

For millennia, caribou seeking relief from summer heat and insects have made their way to ice patches where they bed down until cooler temperatures prevail. Hunters noticed caribou were, in effect, marooned on these ice islands and took advantage.

“I’m never surprised at the brilliance of ancient hunters anymore. I feel stupid that we didn’t find this sooner,” says Andrews.

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The results have been extraordinary. Andrews and his team have found 2400-year-old spear throwing tools, a 1000-year-old ground squirrel snare, and bows and arrows dating back 850 years. Biologists involved in the project are examining dung for plant remains, insect parts, pollen and caribou parasites. Others are studying DNA evidence to track the lineage and migration patterns of caribou. Andrews also works closely with the Shutaot’ine or Mountain Dene, drawing on their guiding experience and traditional knowledge.

“The implements are truly amazing. There are wooden arrows and dart shafts so fine you can’t believe someone sat down with a stone and made them.”

The 68-year-old scientist says a visit by extraterrestrials to Earth would be like Christopher Columbus arriving in the Americas, “which didn’t turn out very well for the Native Americans.”

He speculates most extraterrestrial life will be similar to microbes, or small animals — but adds advanced lifeforms may be “nomads, looking to conquer and colonize.”