CHENGDU, Feb. 21 (Xinhua) -- How are enclosures arranged for captive-bred pandas? According to Zhang Hao with Chengdu Research Base of Giant Panda Breeding in southwest China's Sichuan Province, adult giant pandas usually live in their own enclosures as they are solitary animals with a strong sense of territory. Zhang said that adult pandas only get together during the season of estrus and mating. "In fact, the giant pandas in the base, which...