Website status: All systems goanna.
Recent Observations
540,519 observations, 362,657 without images
Contests In Progress
For observations made between 2022/01/01 and 2025/06/01
Submissions accepted up to 2025/06/01
825
Observations
1,083
Identifications
227
Species
102
People
Past Contests
For observations made between 2022/04/29 and 2022/05/02
Submissions accepted up to 2022/05/08
Started in 2016 as a competition between San Francisco and Los Angeles, the City Nature Challenge (CNC) has grown into an international event, motivating people around the world to find and document wildlife in their cities. Run by the Community Science teams at the California Academy of Sciences and the Natural History Museum of Los Angeles County, the CNC is an annual four-day global bioblitz at the end of April, where cities are in a collaboration-meets-friendly-competition to see not only what can be accomplished when we all work toward a common goal, but also which city can gather the most observations of nature, find the most species, and engage the most people in the event.
337,950
Observations
344,821
Identifications
18,793
Species
11,774
People