Animal fighting is a practice where animals, such as dogs or roosters, are trained to fight each other for entertainment or gambling purposes. This activity is often illegal and considered unethical due to the harm and suffering inflicted on the animals involved. Many countries have laws against animal fighting, recognizing it as a form of animal cruelty. Organizations like the Humane Society and ASPCA work to combat this issue, advocating for the protection of animals and promoting awareness about the negative impacts of such practices on both animals and society.