Middleweight contender Avtandil Khurtsidze has had a long wait for another shot at a belt, but it’s here now and Khurtsidze vows to make it count. I was getting my daily dose of NPR this morning when Morning Edition’s listener letters segment came on. One comment from Linda Lewis from Branson, Mo., really resonated. She was complaining that when NPR interviewed Homeland. Science has long accepted that animals communicate, but…