Entomological Society of Pennsylvania
https://www.entsocpa.org/
Pennsylvania Natural Heritage Program
http://www.naturalheritage.state.pa.us/
Pennsylvania Amphibian & Reptile Survey
https://paherpsurvey.org/
Pennsylvania iMap Invasives
https://www.paimapinvasives.org/gallery-of-invaders
Pennsylvania Biological Survey
http://www.pabiologicalsurvey.org/
*list is continually updated
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