Wolves have the strongest bite force, with canine teeth at least 1cm longer than dogs (the killing efficiency is higher than dogs' N-files), muscle groups more developed than dogs (providing greater strength), and muscle fibers more developed (providing greater explosive power and speed, faster than spirits in extreme sprints). But look at what spirits have lost in pursuit of speed, wolves are still strong. ), the cardiopulmonary function is stronger (providing stronger endurance), the bones are thicker and harder (stronger resistance), the fur is thicker (the first coat has reached 10CM, which can adapt to the worse environment and provide better protection), and the comprehensive strength is stronger. For example, a "fat" wolf weighing 75KG can climb a high wall of 2 meters, which dog with the same weight can do it.

Pit dogs originated in19th century. Pit dogs are mainly bred by American Staffordshire dogs and American bulldogs. /kloc-for more than 0/00 years, pit bull has been praised by dog lovers all over the world as an excellent multi-functional companion dog, fighting dog, guard dog, mountain dog, load dog, portal dog, competitive dog, search and tracking dog and so on. His absolute patience with human beings and his desire for human kindness doomed him to be an excellent companion dog. With tenacious will and amazing endurance, he once again became the best working dog, a competitive dog and a white-faced fighting dog.

Wolf, a carnivore of canine family. The appearance is similar to that of German shepherd, but the mouth is slightly sharp and long, the mouth is slightly wide and the ears are erect. The tail hangs straight; The coat color is brownish gray; China North Wolf Long1~1.5m. Distributed in Eurasia and North America. It has a wide range of habitats and strong adaptability. Wolves live in mountains, forests, grasslands, deserts, semi-deserts and even tundra. China has production in all provinces except Taiwan Province and Hainan. Wolves are both heat and cold resistant. Night activities.

Sensitive sense of smell and good hearing. Cruel and alert, extremely good at running, often using to chase prey. Omnivorous, mainly feeding on deer, antelope and rabbits. Sometimes eating insects, wild fruits or stealing pigs and sheep. He who can starve can also eat. Every year from 1 to February, they often make harsh howls to attract the opposite sex. The gestation period is about 2 months, with 4 ~ 7 litters per fetus. Males and females live together during reproduction. * * * Raising young children together. Wolves often hurt sheep in pastoral areas, so they often carry out wolf-fighting activities in pastoral areas to protect livestock.