Once robust, populations of cougars (also known as mountain lions or pumas) have declined drastically across most of their range in the Americas. The population decline is due to the impact of extensive hunting and predator control, in addition to continued habitat loss and fragmentation. Cougars...

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

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...

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...

Nearly 800 acres of vital habitat in southern California’s Volcan Mountains gained permanent protection as a Humane Society Wildlife Land Trust sanctuary. A diverse array of wildlife species thrive here because of the sanctuary’s many vital habitats. Among these varied habitats are sparkling streams...

WARNING: This page contains graphic content. What are wildlife killing contests? While contests like dogfighting and cockfighting have been condemned in the U.S. as barbaric and cruel, wildlife killing contests still happen regularly in almost all of the 42 U.S. states they are legal in. Killing...

White-tailed deer, North America’s most abundant larger herbivore, number an estimated 30 to 35 million in the United States, found in every state but Alaska, California, Hawai'i, Nevada and Utah. With hunting restrictions, their population has rebounded to where it was before Europeans arrived...

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...

When you filled out our All Animals reader survey last year, many of you had the same question: Beyond making donations, how can I help animals in my day-to-day life? We’ve got good news! There are plenty of easy ways you and your family can help from home, both by making small lifestyle adjustments...

Extreme weather events like wildfires can kill wild animals, either from the fire itself, through smoke inhalation or through loss of habitat. Animals who are very young, old or otherwise unable to move away quickly are particularly vulnerable. Wild animals cope with wildfires in a variety of ways...

The term “roadkill” was coined in the 1940s, according to Merriam-Webster, entering the lexicon alongside “DDT” and other harbingers of a dystopian technological age that runs roughshod over the natural world. In the 1990s, the word became a cheeky insult when a rival called then-House Speaker Newt...

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...