While we're on the topic of Minnesota counties, here is the amazing number of counties in the Land of 10,000 Lakes that have only one stoplight in the entire county - with some counties not even having any at al
Scientists at Oxford University spent 10 years studying homing pigeons using global positioning satellite (GPS) and got a surprising result. The birds often don't use the sun to decide their directions. Instead they fly along motorways, turn at crossing and even go around roundabouts (绕道) , ...