However, we probably haven't paid enough attention to the emotional impact of that loss on the other animals in the household. That's important because I have a hunch that I didn't realize how resilient feline Jason was going to be when his soulmate feline Carlotta had to be put to sleep 1.5 years ago. Also, knowing more would guide us about the timing in introducing another animal into the family.
SCIENTIFIC AMERICAN has an article on animal mourning in its July issue. (Subscription required). This shifts the focus from our human-centered emotional world to that of animals.