12/06/2026
iNaturalist Update: The "Unknown" Filter Just Got Simpler
If you enjoy helping identify observations on iNaturalist, there has been a small but useful change to the "Unknown" filter in the Explore and Identify pages.
Previously, the "Unknown" filter showed both:
π Observations with no identification at all
π¦ Certain identified groups, such as bacteria and viruses that do not belong to an iconic taxon
These were often confused.
Now, when you select the "Unknown" filter, it will show ONLY observations that have not yet been identified.
A few things to know:
π The "Unknown" filter can no longer be used together with groups like Birds, Plants, or Fungi
π Clicking "Unknown" will clear any other taxon filters you have selected
π Bacteria, viruses, and similar groups can still be found by searching for them in the species search box
π Existing saved links and bookmarks will continue to work as before
This update should make it quicker and easier for identifiers to find observations that need a first ID.
π Adding a broad identification, such as Plant, Bird, Insect, or Fungus, is often the first step in helping an observation move towards Research Grade and become more useful for biodiversity research and conservation.
Will this change make it easier for you to find and help identify truly unknown observations on iNaturalist?
Read more: https://www.inaturalist.org/blog/131849
To reduce confusion, we made a small change to the way the βUnknownβ filter on Explore and Identify pages works. Key Takeaways The βUnknownβ leaf outline button filter on Explore and Identify pages now only returns unidentified observations in results, rather than displaying all observations...