I took in a 1 year old Queensland heeler today. Her owners couldn't keep her because they just had a baby and the baby turned out to be allergic to her. From what I've learned she was an only dog, no other animals. She is very shy as her owners made her a home body, they didn't do much with her. As soon as we got her home we took her and Remi out on a walk on mutual territory. Remi loved her, and wanted to play. She on the other hand growled and tried to bite him. I took them home and we seperated them. I let her roam the back yard while Remi stayed in with me, and them I let her investigate my room on her own. After she was calmed a little (2 hours.) we took her out and let Chance out with her since he is calm also. They were fine. When we let Remi out, he tried smelling her and she snarled at him. She didn't go after him just growled, and bared her teeth. Remi walked away. He played ball, and she laid down and didn't care anymore. After bringing them in my mom was petting her and Remi tried to get attention too and she gave him a warning nip, not hard but enough that Remi walked away. I can tell Remi is upset anytime I show her attention, and he nip her once when we were in the living room, she didn't react just stepped back. If Remi is in the kitchen she lets out a long growl and steps very slowly towards him. Remi doesn't know how to react since he has never been around this kind of dog. Right now she is following him around just growling at him. I don't know how to handle this. Is there something I can do? Or do I need to just give back to the owners? I'm looking out for Remi here as he is my number one priority and don't want him in a dangerous situation. Please help.