Have you ever seen someone be mean to an animal like a dog or a cat? That's called animal cruelty. It means that someone is doing something on purpose that hurts an animal or makes it suffer. This is really not nice and it's also against the law.
Sometimes people might do things like kick a dog or hit a cat. Other times, they might not give their pets enough food, water or a safe place to sleep. This is really bad because animals need those things to be healthy and happy.
Animals are also sometimes used for other things like fighting or for show. For example, sometimes people train dogs to fight each other and hurt each other. Other times, people might force animals to do tricks in a circus or a show, even if they are scared or uncomfortable.
However, animals are living things just like us and deserve love and kindness. It's important to always treat animals with respect and care for them so that they can live happy and healthy lives.