I made a book recommendation elsewhere today, concerning the problem of writing beings with senses or abilities or other things that we don’t have, and since for myself I think it’s a rather good recommendation, well, I’m going to make it here, too.
Specifically, Inside of a Dog, by Alexandra Horowitz. It’s a fascinating examination of the canine umwelt – per von Uexkull – their subjective view of and interaction with the world, including the many differences in their sense perceptions. I originally found it useful to help me think about the different mindset of the dar-bandal, the uplifted near-wolves of the Eldraeverse, but a good many of the concepts and ideas I picked up in there have helped me a lot with imagining the perceptions and internal view of much stranger creatures.
(After all, dogs and wolves are close cousins of ours, who may have different models of the traditional five senses, but still use those; it’s rather more challenging to try and imagine the perceptual world of the five-minded ice snakes that are the murast whose “vision” includes none of our visual-light spectrum, the seb!nt!at who perceive the world through nuclear force and magnetic domains, or the mezuar, who as sophont forests, don’t even have a similar sense of self-identity to ours!)
Highly recommended for both worldbuilders and those of everyone fortunate enough to have a dog in their lives.