iNaturalist — Citizen-Science Species Observations
~150M+ research-grade species observations, ~hourly latency. Free REST API. Useful for post-event ecosystem signal (recovery patterns) and as high-density biodiversity layer.
| Provider | California Academy of Sciences + National Geographic |
|---|---|
| Delivery mode | stream |
| CNR score | 75 |
| Cadence | PT1H |
| Origin | https://www.inaturalist.org/ |