A traveler trying to bring four yak skulls back from Tibet was stopped at Sea-Tac Airport by a dog who smelled something funny. The traveler told Customs and Border Protection agriculture specialists he found two of the skulls while hiking and bought two more at a village store. Two of the skulls still had dried flesh attached. They were in a duffel bag that drew the attention of a federal beagle named Woody. After the alert from Woody on April 30, the man declared he had the souvenir skulls, so he won't be prosecuted.