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The relationship between humans and mountain lions has always been uneasy. A century ago, mountain lions were vilified as a threat to livestock and hunted to the verge of extinction. In recent years, this keystone predator has made a remarkable comeback with the help of enlightened wildlife management policies and protection under the Endangered Species Act. But its recovery has led to an unexpected conundrum: Do more mountain lions mean they’re a threat to humans and domestic animals? Or, are mountain lions still in need of our help and protection as their habitat dwindles and they’re...

Comprehensive guide to the animals of North America Fully illustrated with drawings and photographs User-friendly format makes comparing species easy This uniquely thorough reference and guidebook offers illustrations, descriptions, and measurements for the skulls of some 275 animal species found throughout North America. The skull--the collection of bones that house and protect a creature's brain and sensory organs--is the key anatomical feature used to identify an animal and understand many of its behaviors. This book describes in words and pictures the bones and regions of the skull...

Spotting an animal's fresh footprints in the wild can conjure a world for the hiker: Why did the deer tracks disappear? Where did the cougar turn off the trail? What does it mean when two sets of footprints seem to coincide? This beautifully illustrated field guide, the first devoted to the tracks and signs of California animals--including birds, mammals, reptiles, amphibians, and invertebrates like spiders and beetles--blends meticulous science with field experience to provide an engaging companion for both armchair exploration and easy field identification. Filled with useful tools for the...

Roger Tory Peterson's unique identification system explains exactly what features to look for to tell one species from another. In each Peterson Field Guide, an author with expertise in the subject and an experienced artist work closely with the editors to ensure that both text and illustrations are accurate. This edition includes 100 color photographs of tracks and signs, more than 1,000 line drawings, and nomenclature for all the mammals of North America. The text includes descriptions of habits, habitats, tracks, signs, and ranges, and is filled with wonderful natural history stories....