Imagine peering into the wild forests of Russia’s Far East and spotting a golden, ghost-like feline slipping silently through ...

Porcupines are famous for their pointy quills that can hurt their predators. In the wild, this spiky defense lets the ...

Leopards, he says, are flat-out mean—because they "are not the king in their jungle,” Smith says. They have to be on the lookout for bigger predators, such as lions.

Conservationists have to search rough terrain and thousands of automated photographs to find the elusive cats. Artificial ...