I always laugh at the "us" and "them" argument. Of course animals have emotion - we are animals and we have emotion. There are not degrees of differentness. Every species talks its own language, thinks its own kinds of thoughts, feels its own kind of feelings and behaves in ways that are unique yet familiar. None are better, none are worse. We strive to understand but often fall into much easier thinking of separateness and categorization. Happens with chickens, happens with people. Just my thoughts and offers of sympathy on the losses of things we love.