Philadelphia is competing in the City Nature Challenge for the first time and we need your help to win! Cit...

The City Nature Challenge is coming to the Greater Philadelphia Area, and while we'll be competing with cit...

Philadelphia is competing in the City Nature Challenge again and we need your help to win! Cities around th...

While the official Philadelphia City Nature Challenge Area includes Philadelphia county and all counties th...

Philadelphia is competing in the City Nature Challenge again and we need your help to win! Cities around th...

Philadelphia is competing in the City Nature Challenge again and we need your help to win! Cities around th...

Philadelphia is competing in the City Nature Challenge again and we need your help to win! Cities around th...

Philadelphia is competing in the City Nature Challenge again and we need your help to win! Cities around th...

Philadelphia is competing in the City Nature Challenge again and we need your help to win! Cities around th...

Despite being a fairly densely populated area, Philadelphia and its surrounding counties have an impressive...

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Collecting data on the vascular flora of Burlington County, NJ

The Lenape Tribe of Delaware is working on a project to catalog the natural flora and fauna found on their ...

Join us for a week of exploration as we investigate the different plants, animals, and fungi that call Moor...

A collection of native plant species found within the New Jersey Pinelands National Reserve.

Observations from City Nature Challenge 2020: Greater Philadelphia Area

Observations from City Nature Challenge 2021: Greater Philadelphia Area

Observations from City Nature Challenge 2022: Greater Philadelphia Area

Observations from City Nature Challenge 2023: Greater Philadelphia Area

Observations from City Nature Challenge 2025: Greater Philadelphia Area

Observations from City Nature Challenge 2026: Global Project City Nature Challenge 2026: Greater Philadel...

Data from nekton surveys are used as part of a comprehensive salt marsh integrity assessment to determine c...

Join Philadelphia and its surrounding counties as we document our fall biodiversity. We've done the City Na...

This project is intended to explore the fungi of the Greater Philadelphia Area including all 6 of the surro...

Plants of southeastern PA and neighboring NJ.

The purse-web spider formerly known as *Atypus snetsingeri* Sarno, 1973 (Atypidae), was thought to be endem...

Looking at salamanders of the Delaware Valley in NJ.

How do animals and plants react to a (90%) solar eclipse? Will spiders consume their webs, white-throated s...

All observations from the South Jersey area of New Jersey. This area is comprised by the following seven co...

Upload photos of mushrooms from the South Jersey/Philly suburban area for identification.