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Call it what you want, travelers diarrhea is one of the great annoyances of visiting the developing world. Even those who brush their teeth with bottled water and religiously avoid all those delicious street tacos and stir fried noodle stands can still fall prey to that sudden tummy rumbling, ruining days of vacation time. Now, a new vaccine appears to replica Rolex Ladies watches protect more than 70 percent of visitors to Mexico and Guatemala against E. coli, the leading cause of travelers diarrhea. Even those who did get infected with the stomach bug avoided serious illness, reports the study, in the British medical journal, The Lancet.Sounds pretty good to me. Im never one to stay away from a street taco,

A new study showing that marked-up male swallows become ier has the popular science news sites all aflutter. The AP reports that scientists, using a $5.99 marker to turn lighter male barn swallows into darker ones, found a marked increase in replica Rolex Sports Models watches testosterone and ual activity.Barn swallows may be socially monogamous and genetically promiscuous, same as humans, the researchers say, but we do need to becareful about parallels to humans.--Matthew Fishbane

Click "download" next to the map of choice, and wait as the datastreams in and saves on your computer.In my tests, the USGS site was often slow. Map data can take a long time to display, even with a fast connection. Usability on the site was only swiss replica watches mediocre, too. I am fairly literate in the ways of the Web, but the USGS site was not entirely intuitive.Regardless, follow the instructions closely and you should have few issues. Now, go forth taxpayer! Scour the topos. Enter into the public domain. And download your maps at will.Stephen Regenold writes about outdoors gear at .