
Boston Area City Nature Challenge
THANK YOU to everyone who participated in this year's City Nature Challenge! We are so proud of what we accomplished. In a single weekend, over 66,000 people took part in the 2023 event, with over 1.8 million observations and 57,227 species identified! See full results.
The City Nature Challenge is a fun worldwide collaborative bioblitz with cities across the world to document and identify the most species. During the challenge, we document urban biodiversity within the I-495 corridor, out to Stellwagen Bank, including Cape Cod and islands. It’s simple, it’s fun, and it contributes to scientific data helping to better understand our world and our non-human neighbors!