Dog abuse
Animal abuse, especially dog abuse, is, unfortunately, one of the most common forms of animal abuse in the world. Maybe that is just because dogs can be found almost everywhere and are popular animals to have as a pet. Regardless of that, great efforts have been made to stop dog fighting.
Police have been able to crack down on dog fights and operations successfully over the years. Also, better education in schools has shone a light on the horrors of animal abuse, so the appetite among people to watch has fallen drastically with time. Hopefully, it stops once and for all.