Nitro is honestly the sweetest boy you'd ever meet! He will be 2 years old in February so he's really not that old. He is ABKC registered and I do have his papers. Don't let pictures fool you, he's a big boy! He weighs 88 pounds currently and definitely isn't done growing. Sometimes he's playful like a puppy but he also likes chilling out and chewing on a bone. He has been Embark tested and up to date on shots. I originally got him for my program but I've decided to go a different route. He is male dog aggressive and I've made some progress on that. He does great with my female's and even better with my kiddos all younger that 7 years old!