Ear and tail cropping. Why is it done and what was the reason? Bad or Good? These are questions asked quite frequently. Historically these dogs are the resurrected Ancient Molossus from 5000 BC. These are the earliest large framed guard dogs with cropped ears and tails. The ears were cropped and tails were cropped at that time to prepare them for combat and fighting with humans and other animals that could grab hold and have a n advantage over them. At this time these animals