Animals have all sorts of talents, some that uniquely qualify them for certain jobs.
Take ferrets, for example. Their body shape, flexibility and attraction to tunnels make them a perfect fit for laying cable. Trained ferrets wear a harness attached to a cable. Lured by the smell of a treat at the end of the line, some have carried cable for over 800 feet.
In the vineyards of South Africa, Indian runner ducks eat insects, snails and worms that would otherwise feast on grape vines. Similarly, some wineries in Spain invite spiders to trap cork-eating moths otherwise bound for wine barrels.
From rodents that sniff out mines and tuberculosis to hawks that scare pigeons away from railway stations, animals help humans get the job done.