You'll be amazed by the ways desert birds survive and thrive in dry country. Learn about the bird species that live in ...

A look at the bobcat population in the North Star State.

Americans still dig French bulldogs, retrievers and German shepherds. But dachshunds are increasingly hot dogs.

An insidious disease has eliminated dozens of the world’s frog species. Scientists fear a similar plague could be coming for ...

Tucson's history began with a Spanish fort, the Presidio San Agustín del Tucson, built in 1775, then almost lost.

From feral hogs to sea lampreys, these invasive species cost billions and continue spreading across North America.