Very high energy Kelpie mix. This dog needs daily walks and would be perfect for someone who jogs and hikes. He never get tired. Has shown aggression towards cats and attacked my little cat. Has shown aggression to men as well. Tried to bite my teenage son and bit my hand when I intervened. Also bit adult male when he entered the dog's space. Has no issue with my husband. He has some obedience training, but will require more. He needs to go to an active family with a yard. He has shown some aggression towards other dogs through a fence. He is currently living with a large Rottweiler with no problems. He does try to herd her and gets very mouthy. She tolerates him. He has shown no food aggression and is very gentle when accepting treats. He can be very sweet, but is a handful when he gets bored. Chase is about 1 1/2 years old and weighs 35 lbs. No known health issues. He spent a 3rd of his life in the shelter and it has affected him negatively. Currently we are having to segregate him to the back of the house to keep the cats safe. He is crated during the day when we are at work.