These findings contradict the notion that such diversity was mainly a relatively new phenomenon driven by selective breeding ...

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 ...

Wolves and dogs don’t normally breed in the wild, largely because wolves are so territorial. But an exception has been found. While wild dog-wolf hybrids had previously only been suspected through ...