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City Nature Challenge

“Welcome to the Philadelphia City Nature Challenge! Between April 28 and May 1, 2023, Philadelphia and its adjacent counties will be competing against other cities in the world to see who can find the most species in their regions. If you are interested in contributing and helping Philly win, download the iNaturalist app (or visit the website) and start documenting the wildlife in your area. You can also visit our project page to see the latest observations as they come in. A lot of people think cities are mostly devoid of wildlife; there are the pigeons hanging out on buildings, the sparrows in city parks and the

City Nature Challenge 2024

Help Philadelphia take on the world while you connect with nature in the 2024 City Nature Challenge. Beginning on Friday, April 26 at 12:01 am in each time zone, the City Nature Challenge runs through Monday, April 29, 11:59 pm. The global event, co-organized by San Francisco’s California Academy of Sciences and the Natural History Museum of Los Angeles County, calls on current and aspiring community scientists, nature and science fans, and people of all ages and education backgrounds to observe and submit pictures of wild plants, animals, and fungi using the free mobile app iNaturalist. From Friday, April 26

Free

City Nature Challenge 2024

Help Philadelphia take on the world while you connect with nature in the 2024 City Nature Challenge. Beginning on Friday, April 26 at 12:01 am in each time zone, the City Nature Challenge runs through Monday, April 29, 11:59 pm. The global event, co-organized by San Francisco’s California Academy of Sciences and the Natural History Museum of Los Angeles County, calls on current and aspiring community scientists, nature and science fans, and people of all ages and education backgrounds to observe and submit pictures of wild plants, animals, and fungi using the free mobile app iNaturalist. From Friday, April 26

Free

City Nature Challenge 2024

Help Philadelphia take on the world while you connect with nature in the 2024 City Nature Challenge. Beginning on Friday, April 26 at 12:01 am in each time zone, the City Nature Challenge runs through Monday, April 29, 11:59 pm. The global event, co-organized by San Francisco’s California Academy of Sciences and the Natural History Museum of Los Angeles County, calls on current and aspiring community scientists, nature and science fans, and people of all ages and education backgrounds to observe and submit pictures of wild plants, animals, and fungi using the free mobile app iNaturalist. From Friday, April 26

Free

City Nature Challenge 2024

Help Philadelphia take on the world while you connect with nature in the 2024 City Nature Challenge. Beginning on Friday, April 26 at 12:01 am in each time zone, the City Nature Challenge runs through Monday, April 29, 11:59 pm. The global event, co-organized by San Francisco’s California Academy of Sciences and the Natural History Museum of Los Angeles County, calls on current and aspiring community scientists, nature and science fans, and people of all ages and education backgrounds to observe and submit pictures of wild plants, animals, and fungi using the free mobile app iNaturalist. From Friday, April 26

Free