Join Philadelphia and its surrounding counties as we document our fall biodiversity all over Greater Philadelpia. We’ve done the City Nature Challenge in the spring, but now it’s time to see what we have around us in the fall. From Friday, September 25 to Monday, September 28, we will be documenting the plants, animals, and fungi in Philadelphia, Delaware, Montgomery, and Bucks counties in PA and Camden, Gloucester and Burlington counties in NJ. Read more …