What type of bug are these?
I do not know what arthropod is in your pictures. The picture does not have the arthropod in enough focus for me to be able to identify the animals. I would need a closer picture also. The animal in the picture could be a mite or if they are coming off your dogs, possibly the nymph stage of ticks. I need a close-up picture that is in focus to have a better chance at identifying this arthropod.