Is there something unique about a greyhound that they require more attention than other dogs ? Here ' s the issue These Greyhounds are raised with their dam and littermates and stay with their littermates and other younglings until one year old . After they go to the track kennel , they are again surrounded by other Greyhounds and have trainers in and out . They have never been alone . This is something any potential owner needs to understand and handle with some kind of alone training , separation anxiety plan , or group support . Being left alone also coincides with being put in a new environment with new people . That is stressful for anyone , not just dogs . So no , the adoption group is not blowing smoke . Usually if an owner can successfully alonetrain the dog to be OK for 45 hours , the dog can make it to the time a walker would come , then be OK for another block of 4 hours until the owner comes back . This is not necessarily a forever situation it ' s just until the dog is adjusted .