National Geographic : 1978 Sep
JIM BRANDENBURG(ABOVE) Dashing pigs sprint toward the finish line at the National Farm Show in Wash ington, Iowa (left), dispelling the notion of "lazy swine." And in Hot Springs, Arkansas, a self-activated shower for fas tidious Agnes (below) of Animal Behav ior Enterprises (ABE) gives the lie to the "dirty-as -a -pig" myth. Lacking major sweat glands to regulate body tempera ture, the animal must have moisture to keep cool in warm weather, but-though inherently more tidy than most other do mestic animals-it usually has to resort to mudholes for relief. Clean or dirt caked, swift or slow, a pig has a penchant for performing. Naturally curious, pigs, with proper training, quickly learn how to dance, tumble, re trieve, and dive; how to fetch newspa pers or pull a cart. Hogs can even be trained to sniff out land mines in combat zones. Rewards-affection and food are the training tools; punishment fosters belligerence. Some scientists claim that, unlike dogs and horses, pigs do inde pendent thinking and can figure out a problem for themselves-the dictionary definition of intelligence.