Drug resistance is a growing problem in today's society. Successful drugs are constantly being developed but there is always the risk that a small percent of the drug's target will be immune. These survivors can then lead to a new population, resistant to the action of this drug. New drugs are continuously under development to combat this problem, but these can, in turn, lead to new resistant populations. This problem is universal whether the target is to destroy a deadly virus, or an inse...

The Golden Crescent of South Texas, a fifteen-county region along and inland from the middle Gulf Coast, is often called "the Crossroads" because of its natural diversity. Located in the heart of the Gulf Coast Prairie and Marshes, the area also encompasses the trailing edges of the South Texas Plains, Post Oak Savannah, and Blackland Prairie. This confluence of ecological zones makes it a wonderful place for birding and for observing the changing face of nature, especially during seasonal...

From the bald eagle to the pileolated woodpecker, the varied and abundant birdlife of the northwestern national parks is as impressive as the parks' dramatic scenery. To help both beginning and advanced birders make the most of their visits to these parks, Roland Wauer has written this finding guide, which introduces the most common birds and the most likely places to see them.The book opens with practical advice on getting started in birding—choosing binoculars, bird identificatio...