All modern-day pooches, from beefy Newfoundlands to scrawny Salukis, are descended from an ancient population of domesticated gray wolves. Despite the 20,000 or so years that have passed since, a new ...

A Coloradoan open records request showed the U.S. Fish and Wildlife Service will assume wolf management from Colorado if ...

Get any of our free daily email newsletters — news headlines, opinion, e-edition, obituaries and more. Recently, the Chronicle ran a "fairy-tale" story concerning the progress of the reintroduction of ...

Epicyon haydeni, or Hayden’s bone-crushing dog, roamed North America between 12 and 6 million years ago during the middle to late Miocene epoch. Its fossils have been discovered in at least 12 ...

Forbes contributors publish independent expert analyses and insights. GrrlScientist writes about evolution, ecology, behavior and health. Wolf bones unearthed on a tiny island in the Baltic Sea were ...

The Riley Creek pack had almost doubled its acreage of boreal forest, high mountains, graveled riverbeds and tundra hillside.