Researchers collected and analyzed 136 samples -- covering 80 brands -- of beef , chicken , pork and turkey from 26 retail grocery stores in five u.s. cities : los angeles , chicago , fort lauderdale , flagstaff and washington , d.c.
Northern arizona university biologist jeffrey foster talked at the sciencewriters 2011 conference in flagstaff on october 16th about what the loss of large numbers of bats would mean .