Colorado’s mountain lions, bobcats and lynx are under threat from trophy hunting and need protection now.

Named for their stubby tails, bobcats are so elusive that most people would be lucky to catch a glimpse of one in their lifetime. The bobcat is 10 times smaller than a cougar but two times larger than a housecat, and often confused with both. Because of their smaller size, solitary nature and...

The mountain lion known as P-47 survived fires, freeways and hostile ranchers. But in March, the 3-year-old big cat—tracked by California biologists since his kitten days—succumbed to a hidden hazard: an insidious form of food poisoning. Six anticoagulant compounds—chemicals used to kill rodents...

Murchison, TEXAS—A group of exotic wild animals who spent their lives at a deplorable roadside zoo in Canada are now receiving proper care and living their happily-ever-after at the 1,400-acre Black Beauty Ranch, a sanctuary that is part of the Humane Society of the United States. The animals...

It seemed like a good idea at the time: Buy a house with a two-acre property, let our energetic herding dog have the run of the place and spend blissful summer days digging side by side in the dirt with her. And it was blissful, watching Mattie carve out her napping spots behind the ferns and tall...

WARNING: This page contains graphic content. When rescuers slowly creaked the rusty door open, the dilapidated building appeared to be empty. Windowless and dark, the sheet-metal structure held no noise, only air thick with spiderwebs, dust and the burning smell of ammonia. Then a head with small...

You’d think it would be easy to persuade people to protect prairie dogs: Not only are they a keystone species, with nine other species directly dependent on them for survival, but they’re also irresistibly cute, with big eyes and big personalities. Yet the personable little rodents often find...

Wherever you are in the U.S., a coyote may be taking up residence less than a mile away. If you live in the city, you’re more likely than your rural cousins to encounter raccoons. And regardless of geography, you probably share your home with dozens of species of insects and spiders. These facts...