The planet's wondrous web of life — which took 4 billion years to evolve — is vanishing in the blink of an eye. Under relentless pressure from habitat destruction, invasive species and climate change, ...

POPULATION TREND: The San Joaquin kit fox is declining. Due to large fluctuations in annual precipitation and prey availability, sizeable fluctuations in kit fox numbers may be natural for kit foxes ...

Despite their name fishers don't eat fish or live by the ocean. These shy, plush-furred members of the weasel family inhabit mature forests and munch on everything from birds to small mammals to fruit ...

Few animals evoke the wild like wolves. Majestic, intelligent and highly social, they’re crucial in driving evolution and balancing ecosystems. Some 2 million wolves once roamed freely throughout ...

Once among North America’s most widely distributed land mammals, gray wolves have also been among the most persecuted. State, local and private bounties and a federal extermination program nearly ...