Most dogs with long ears were bred to follow prey over vast distances. Dogs with long ears include Bloodhounds, Basset Hounds and Beagles.

Bloodhounds are known for being tenacious trackers, said Brian Tierney, president of the National Police Bloodhound Association. They're playing a key role in the search for Hardin, now in its ...

Bloodhounds are also independent, a key trait for searches. “When it gets to be a difficult search they don’t look to you for help, that they go forth themselves,” Heck said.

Bloodhounds are also independent, a key trait for searches. “When it gets to be a difficult search they don’t look to you for help, that they go forth themselves,” Heck said.