The modern Beagle took shape in 1830s England, building on small hare-hunting hounds that had run in packs for centuries. The Reverend Phillip Honeywood's pack in Essex was the starting point. The result is a sturdy little hound, usually 18 to 30 pounds, with a domed skull, long soft ears and a white-tipped tail. In the U.S. there are two sizes, up to 13 inches and 13 to 15 inches, most often tricolor.
Beagles are known as merry and sociable, which fits a dog bred to work alongside other hounds. The nose leads, though. Expect baying, trash-can raids and a dog that wanders after scents, so a leash and secure fencing matter. Shelter Beagles are often mixes, and every dog's personality varies, so judge the dog in front of you rather than the label.