Behavior of Mixed Breeds
The behavior of a mixed breed dog will generally be somewhere midway between that of its parents. However, this isn't always the case, as you can have a Labrador/Shepherd mix with no ball chasing or protection instincts.
The mixed breed whose appearance offers no clue as to his background presents a real challenge. Often, only his behavior can be used to determine his mixture. A mixed breed owner can expect little from his dog's known background, less from his unknown background, and confusion from his appearance.