It's not quite sharks with laser beams attached to their heads, but an Australian prison just got a guard dog with titanium teeth. Axel got his new metal chompers after he bit into a board, breaking many of his teeth. Veterinary dentist David Clarke says: "So much is spent on training working dogs that it ends up much cheaper to repair a dental problem than retire the dog. Prison dogs, police dogs, hunting, quarantine and customs dogs often suffer injuries in the course of their job."
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