Blind Man Will Rely on Seeing-Eye Horse.

Why rely on a horse when there are so many
expertly trained dogs out there? Trainers say the
biggest advantage is durability: The average
miniature horse will live to 40, three times longer
than most guide dogs. Also, because of the positions
of their eyes, horses have much wider fields of vision
than dogs, said Burleson, adding that they can see
nearly 350 degrees.