aang was wondering off until he found a goat dog just sitting down eating grass, aang wasn’t too surprised but, then he saw a chupacabra kill it and drag it to the hills, and was shook so he went back to the camp him and the rest of the gaang had set up, katara comforted him, and he was tried to process what he saw, a chupacabra. They’re where known as the goat vampires, so he asked them a question "what exacty really is a chupacabra??"