Loki is a 83 pound white pitbull who is Isaac's brother. I haven't heard or even met Loki until yesterday when they arrived from north Georgia for a visit. When this boy got out the car man what a gentleman he needed no leash and was no problem. He was beautiful and he loved water. Isaac was very interested in the arrival of his bro and walked up calmly. Loki and Isaac began sniffing each other and then shot off like a bullet and played all yesterday. When Loki left yesterday he wasn't white anymore. Pics will be posted of him if u would like to see Isaac's brother.