Coydogs. Are they real creatures, or just the stuff of urban legend? As the name implies, a coydog would be a cross between a coyote and a dog. But according to Chrissie Henner, a biologist at the Massachusetts Division of Fisheries and Wildlife, they're an urban legend
. She says that "there has never been any physical evidence of a half-dog, half-coyote animal."
Not that it would be impossible for the two species to mate and produce an offspring, just very unlikely. Though Henner also…