Sort taxonomically. If I want to see the “snakes” I’ve observed it would be much more useful to see them arranged in some order (taxonomic preferable, alphabetic okay) other than date observed or date added.
Or sort alphabetically within a taxon. I’ve wished for this since I began using INat last year. For example, if I am searching on the observation page for Cyperaceae, currently provides the recent observations in the last date added order (currently only possible to sort by date added, date observed, or faves.). It would make it much more useful (to me at least) to have an option to sort alphabetically so each genus would be in alphabetical order say, within a family, and within each genus each species. Much easier to look over a large number of observations without having to manually search each individual species. Take a large genus such as Carex - much more helpful to see observations by species (could subdivide into subgenus or section, but that could be daunting and not critical) - alphabetical would definitely work.
I can see where this might not be so useful under the general “explore” tab as there could be way too many observations so the first screen might only show a single species when sorted this way, but under the “your observation” tab I would find it extremely helpful.