Sika deer and established woodlands, and public and private forestry bodies adopt policies of rigorous year-round culling. The main predators of sika deer include tigers, wolves, leopards, and brown bears. Lynx and golden eagles target fawns. Velvet antler (dried immature antlers) is a popular ingredient in traditional Chinese medicine, and sika in China were domesticated long ago for the antler trade, along with several other species. In Taiwan, both Formosan sika deer and Formosan sambar deer ("Cervus unicolor swinhoei") have been farmed for velvet antlers. Japan is the only country in eastern Asia where sika deer were not farmed for velvet antlers.
Sika Anoaʻi regained the championship on the September 9, 1980, episode of "WWF Championship Wrestling", defeating Tony Garea and Rene Goulet in the finals of a tournament. Their second reign lasted until November 8, 1980, when they lost to Garea and Rick Martel. The Wild Samoans left the WWF in December 1980. In January to February 1981, The Wild Samoans toured Japan with New Japan Pro-Wrestling, performing as "The Samoan #1" (Afa) and "The Samoan #2" (Sika) respectively. They competed in the New Year Golden Series, repeatedly facing Antonio Inoki and Seiji Sakaguchi. The Wild Samoans made a second tour of Japan