High Quality Content by WIKIPEDIA articles! The Bloodhound (also known as the St. Hubert hound and Sleuth Hound) is a large breed of dog which, while originally bred to hunt deer and wild boar, was later bred specifically to track human beings. It is a scenthound, tracking by smell, as opposed to a sighthound, which tracks using vision. It is famed for its ability to discern human odors even days later, over great distances. Its extraordinarily keen nose is combined with a strong and tenacious tracking instinct, producing the ideal scent hound, and it is used by police and law enforcement all over the world to track escaped prisoners, missing people, lost children and even lost pets.