Why do dogs eat feces?

“There is no solid scientific evidence explaining why dogs eat feces—their own or those of other dogs, or other species,” says Alice Moon-Fanelli, Ph.D., certified applied animal behaviorist at the Cummings School of Veterinary Medicine at Tufts University. “The behavior is typically more bothersome to owners than dogs because owners find the habit so distasteful.” -- From "Tips of Their Tongues" by Betty Liddick
Read the full article here, the fourth in our series on the senses, where we explore how dogs decide what's delicious.