reading dog

a dog owner believes her peT has developed the ability to sort and deliver letters apparently by'reading' to whom they are addressed.
denver ,a five year old cocker spaniel, collects the mail as it drops trough the door of his home in Bornoldshwick ,North York, and then takes it to the various members of his owners family.
denver was supposed to take all the mail to his owner who is confined to a wheelchair .but he began to distinguish between her name and those of her boyfriend .
it's a really interesting news.in my opinion it is impossible for a dog to read .maybe he can distingiush between the lenghts of the names as her owner believes