New genetic ​research now is offering valuable insight on man's best friend, including identifying the earliest-known dog, dating to 15,800 years ago.

WASHINGTON, March 25 : Dogs have been loyal companions to people since we made them our first domesticated animals, descending long ago from gray wolves - though precisely when, where and why have remained unanswered. New genetic research now is offering valuable insight, including identifying the earliest-known dog

WASHINGTON, March 25 : Dogs have been loyal companions to people since we made them our first domesticated animals, descending long ago from gray wolves - though precisely when, where and why have remained unanswered. New genetic research now is offering valuable insight, including identifying the earliest-known dog