The pampas grasslands of Argentina are among the richest grazing areas in the world. Few pristine remnants of this legendary grassland remain, and it is considered one of the most endangered habitats on earth. As a measure of the health of the pampas ecosystem, Dr Mauro Lucherini and his colleagues have gathered baseline data on the rich diversity of little known carnivores. With a landscape approach, the researchers are using carnivore information as a tool to understand the effects of human activities on the natural grasslands. Written in English and Spanish, this book gives us a glimpse into a world few are aware of, showing the human side of scientific field research. Fact sheets on each species are followed by detailed reports from the field, which outline the challenges faced by researchers trying to study these animals in a human altered landscape.