The lizard could also form new relationships with other lizards in the area. It overcomes its sadness by building a new life with its new friends, sharing resources and living happily in its new environment.
Maybe the cat, despite all the sadness, manages to form a little community with other stray animals for support and survival. Or it could be that an animal rescue organization steps in and takes the cat in, nurses it back to health if it was ill, and then finds it a forever home.
One possible ending could be that things turn around for papaw. He could receive support from his family or community and start to feel happy again.
The pigeon might reunite with its flock in the end. After going through all the hardships and being sad for a while, it manages to find its way back to its group. They welcome it back, and it no longer feels lonely and sad. Another ending could be that the pigeon, despite its sadness, adapts to its new situation. It learns to be more independent and finds new sources of food and places to rest, so it becomes less sad over time.
One possible ending could be that the cheerleader finds support from a new friend or mentor. This person helps her to see her worth beyond her problems, and she slowly starts to regain her confidence and happiness in cheerleading.
One possible ending is that the dog finally reunites with its owner after a long and difficult journey. It's a bittersweet ending as all the pain and sadness before seem to fade away in that moment of reunion.
One possible ending could be that the person with black teeth discovers a magical cure and their teeth turn white again, leading to a new life of acceptance.
Perhaps the brother and sister get separated due to some misunderstanding. Years pass and they both try to move on but deep down they are always sad. In the end, they find out about the misunderstanding too late when one of them is on their deathbed, and they can't make up for the lost time.
Perhaps the stray cat finally finds a small corner to hide in as it gets weaker and weaker from lack of food and illness. It curls up and closes its eyes for the last time, with no one to mourn its passing or even know it had ever existed.
One possible ending could be that the grandpa's family finally realizes how much they've neglected him. They start visiting him regularly, and he slowly starts to regain his old happy self.
The wolf could sacrifice itself to save another animal or even a human who once tried to harm it. This selfless act would be a very sad but also heroic ending to the story.