yes dogs can sense danger, but they also know who is there master. when i go away and have a friend watch the dog, they won't eat. they know it not me. now they don't sense fear or danger they just know its not me and they get depressed a lot of dogs to that. i don't get how you can say deer don't have memmories, i'm not going back over every point i've already made but look, if deer had no memmory then they would not be able to comprehend their senses, they would not know what they are smelling, seeing, or hearing. noone has proved yet that deer have only a 7 second memmory