Striped skunks (pictured, a captive animal at a wildlife center in New Mexico) can sport a variety of colors and patterns across their range. Photograph By Joel Sartore, National Geographic, Photo Ark ...

If you cross paths with an unknown species of snake, you may wonder if it’s poisonous or venomous—or if there’s even a difference. The truth is “venomous” and “poisonous” are unique ...

Ligers, zorses, and pizzlies: How animal hybrids happen. Interbreeding between animals of different lineages is widespread in nature—and may reveal some of the mysteries of evolution.