Julia is a smaller mother she has an old scar on her left side below her dorsal. She is friendly with Raggedy Ann and of course JoJo. I think Frisky is in his second year. He just got a tear where is left pec attaches to his body. I don't know if that will create a scar. I have seen them numerous times this winter 2013-14 and been able to swim with them all but once.