The New York Times says that an inspection station here on the border with Montana, a black dog in an orange vest briskly scoured the hull of a motorboat, his nose twitching as he investigated every crevice. Suddenly he found the scent: a quagga mussel. Wicket sat and looked expectantly at his handler. “Good dog,” said Aimee Hurt, who trained Wicket for a group called Working Dogs for Conservation. She tossed a red rubber ball on a rope to him, which he attacked with gusto. “He’s not just a seeker” of mussels, she said. “He’s a destroyer because if he could, he’d chomp them.” Read the full story here.