Ruby Sisson Library

Do grizzly bears still wander the San Juan Mountains of Colorado, where they have long been considered extinct? If so, can they elude the naturalists determined to prove that these bears, perhaps smarter than all other bears, survive in the mountain wilderness? Rick Bass, along with veteran grizzly expert Doug Peacock and biologist Dennis Sizemore, search for proof - a claw mark on a tree, a tuft of fur, bear tracks - and as they search, an adventure...

Black-footed ferret release after an intense breeding program to bring the species back from the brink of extinction.

How rewilding has transformed the conservation movement, combining radical scientific insights with practical innovations. Progressive scientists and conservation professionals are pursuing a radical new approach to restoring ecosystems: rewilding. By recovering the ripple effect generated by the interactions among plant and animal species and natural disturbances, rewilding seeks to repair ecosystems by removing them from human engineering and reassembling...

This Conservation Strategy (Strategy) has been developed to direct implementation of conservation measures for Colorado River cutthroat trout (CRCT) in Colorado, Utah, and Wyoming as a collaborative and cooperative effort among resource agencies. Threats that warrant CRCT listing as a special status species by state and federal agencies and might lead to listing under the Endangered Species Act of 1973, as amended, will be eliminated or reduced through...

For over a century, wolves were persecuted in the United States and nearly became extinct. Gradually reintroduced, they are thriving again in the West, much to the benefit of the ecosystem.