Observation page, without filter:
Many observations are shown several times, for instance:
More generally, there is an issue browsing the Observations page as new observations are added continuously. Instead of “Page 1”, “Page 2” whose contents are continuously changing (going to the “next” page will in fact display again the same observations, or half of them), a “More” button with a link based on the last observation displayed would be more consistent, similarly to what we have in the Home page, where the “More” button is a link like this:
Such a change would also likely fix the issue above.