1 Arthritis. 2  Arthritis can cause groin pain, stiffness, or a limp. 3  Back problems. 4  Spine problems in the back near the lower ribs can pinch the nerves that travel through the groin area and cause groin and thigh pain. 5  Spine problems include a herniated disc or lumbar narrowing (stenosis).
Channel islands due to the abundance of the feral pig as a prey species. The previous. lack of an abundant prey species made it difficult for the eagles to establish colonies. Prior to the introduction of pigs, island foxes were numerous on the island.
Big cats such as cheetahs and lions hunt prey in temperate grasslands. In North America, wolves, coyotes and foxes hunt for mice, rabbits and deer. These predators help keep populations of grazing animals in check so the grazers do not eat all the grass and other plants in the biome. In the Russian grasslands, polecats, members of the weasel family, make up some of the larger predators.