Grunting and grumbling, something scuffles through the desert. A pungent smell hangs in the air. Is it a pig? A hog? A wildebeest? No. It's a collared peccary, better known as a javelina. While most humans never see a javelina, they fascinate ---and occasionally annoy---Western visitors and residents alike. Roots, prickly pear cactus, garden flowers and garbage are equally attractive to these omnivorous beasts. In spite of their bristly pelts and...