They believed that, unlike free-living species, parasites did not evolve, but rather sponged, stagnantly, on their hosts.
In despair, they advertise for a bodyguard, and wind up with a free-living beach bum and Army deserter (Owen Wilson), who will feign anything for money.
That is not surprising in itself, but it means that the virus must have become endogenous fairly recently, otherwise it would not look so similar to its free-living counterpart.
But what is more curious is this: the retrovirus is closely related to a free-living virus called Jaagsiekte sheep retrovirus, which causes lung cancer in sheep and goats, but not other species.
"Breeders tell us that not all of their birds come back from every race, and so these are the birds with the greatest potential to escape and contribute to the free-living population, " Dr Shapiro said.
And a back-of-the-envelope calculation based on the 1.8m sorts of organism recognised so far as species under the Linnaean system, on the rate at which new species are being discovered and on such ecological matters as the average number of parasites (themselves new species) that each free-living species harbours, suggests the final total may be around 30m.
But even after mastering the basics, dealing with the social aspects of gluten-free living proved challenging.
She came to the Center for Drug-Free Living over in Orlando.
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Expensive homesteads and manors in cities will be limited and highly taxed unless, of course, you back the project on Kickstarter. one of the rewards is tax-free living for life.
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Now Terry has written a book that compiles all of the plastic-free living knowledge she has amassed over the years: Plastic Free: How I Kicked the Plastic Habit and How You Can Too.
In the final years of the Third Reich, his standard of living was in free-fall.
Renting and other arrangements (living rent-free with family members or friends) show the opposite pattern, with rates climbing steadily starting at age 75.
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"Living mortgage-free has given us the freedom to make decisions based on what will make us happy, not what we have to do to pay the mortgage, " Berzins said in a CNN iReport.
Serbian railways gave free tickets to mostly anti-independence Montenegrins living in Serbia to go home to vote.
There's also news for the approximately 4, 000 families in Florida who are still living in rent-free in FEMA trailers after the busy 2004 hurricane season.
It does, however, offer up smartphone-style predictive text at the bottom of the screen, which may help address some of the headache of this physical keyboard-free world we're all living in.
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Mr Darling paid local taxes on his ministerial property, as well as income taxes on the imputed benefit of living there rent-free, and claimed less than he was allowed on his second home in Edinburgh.
Last month, a senior judge ruled Jordan had not proved that the retrial of Abu Qatada - who is currently living under strict bail conditions in London - would be free of evidence obtained by torture.
Ammonites were free-swimming molluscs of the ancient oceans, living around the same time as dinosaurs.
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Do some research when you arrive: talk to friends or your concierge and pick up a copy of the local arts weekly, Miami New Times, or a free monthly such as Miami Living Magazine or the pint-sized Ego Miami Magazine.
Today, the 29-year-old is living somewhere in Kuwait, a free man.
The talented, likable athlete is supposed to have a sublime season in the final year of his contract, become a free agent and cruelly abandon whatever sad-sack village he's living in with crummy pizza, zero Trumps and no Momofukus or even Milk Bars and run straight to New York.
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Today, Kunene has the largest number of free-roaming black rhino in the world -- the only rhino worldwide living on communally- and traditionally-owned land without formal conservation status.
In early-stage breast cancer Herceptin doubles a woman's chances of living cancer free.
Some observers, though, have raised doubts to what extent the reforms will be able to create a true market economy, and whether North Korean society - living for decades under a Stalinist regime - can cope with the concept of free markets.
As soon as possible, they need to free prices, including the exchange rate, even though in the short-term devaluation means inflation and falling living standards.
When free-agent recruiters in Houston recruit players with promotional books that walk them through the dollars and sense of living in a no-income tax state, you know that it is a slam-dunk factor.
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