I've had all the above...rabbits, gerbils, hamsters, guinea pigs, and the rat is definitely my favorite. Best all around pet. They don't smell like the others (except the gerbil, they are pretty clean, too) and love to play, watch tv, sleep with you, everything! If he is wanting one to just relax with, go for a male. They tend to be lower energy. The females are smaller and
very active.
Temperment-wise, they are both sweet and loving, will come when called, and just want to hang out with you. Think of the males as couch potatoes. LOL!
I would stay away from the albinos and the red eyed ones. They have some sensory issues, and might not like the bright lights, if he takes them outside. There are lots of different colors. I always thought the hairless ones were really cool looking, but thought they would get too cold.
The dalmation and the blues are really pretty, but I always loved the hooded rats.
The rats will go anywhere and everywhere your son does. When I was younger, mine slept with me and went to school with me. They are very adaptable.
Not sure what the one poster meant about the rats getting as big as cats...they are smaller than a guinea pig, so don't worry about the size. My DH did have 2 ginormous ones, they were waaaay overfed. He rescued them and they weighed 3 pounds each! They were sweet as can be, but didn't move much. I don't know why someone would do that to an animal.
Icedmocha-is that a Dumbo Rat? I've never seen a blue one, he's gorgeous!
Good luck finding him the perfect pet! Nothing like rat whispers in your ear!
Fellow rat owners will know exactly what I am talking about!
LOL!
Shelly