Endangered Species Handbook. (1983, 2005 Animal Welfare Institute)

"It's Too Late

Introduction

[---] In the past, ecological roles left empty by extinctions were soon filled by the evolution of new species.  After the last of the dinosaurs died out some 65 million years ago, mammals and other animals proliferated on Earth.  The overall diversity of species remained stable or increased.  At present, however, diversity of life on Earth is in steep decline as species are dying out without being replaced." 

"Wolves, Wild Dogs and Foxes

Wolves have suffered more inhumane treatment and loss of range and populations than any other predator. The history of their survival and disappearance in various parts of the world is a reflection of the overwhelming importance of people's attitudes toward animals. When emotions, especially fear and negative superstition, rule people's minds, wolves can be destroyed on the basis of ignorance about their real threats to people and livestock. On the other hand, when people are aware of biological facts about the wolf and its ecological role, behavior, value to ecosystems, and the truth about its history of not attacking people, prejudices tend to dissipate. Native Americans had a natural affinity and respect for wolves, calling them "brother." The wolf's very survival as a species depends on its being treated with tolerance and respect. Gradually, this is happening in many parts of the world. Education and a change in government attitudes in many countries are needed to conserve this species, along with better ways of raising livestock." 

Endangered Species Handbook. (1983, 2005 Animal Welfare Institute) http://bit.ly/PE1Fnz  (Un documento interactivo de:   http://awionline.org/ )