Research & Collections Photo Gallery
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Delaware River Watershed Initative

Academy scientists sample algae on Cobbs Creek near Bethlehem, Pa., as part of the Delaware River Watershed Initiative.
Credit: Tess Hooper

Farm fertilizers and animal waste flowing into streams can cause problems in the Delaware River Watershed.
Credit: ANS

Academy Research Technician Amanda Chan and Staff Scientist II Sylvan Klein conduct a habitat assessment for a salamander biological survey of the Lehigh River near East Stroudsburg, Pa. Salamanders are key indicators of water quality.
Credit: Nikita Shah/ANS

Drexel University co-op student Nikita Shah evaluates habitat conditions of a stream in the Poconos, Pa., for potential sampling as part of the Delaware River Watershed Initiative.
Credit: Meg O’Donnell/ANS

Academy scientists return to Cobbs Creek near Havertown, Pa., every other year to monitor fish populations and species abundance for a long-term survey. Here they are electrofishing to capture and then release fish.
Credit: Sylvan Klein/ANS
Lab and Field Work

Dr. Marina Potapova collects diatoms, single-celled algae.
Credit: ANSP

Dr. Clyde Goulden interviews nomadic herders in Monglia who are affected by climate change.
Credit: Tuya Goulden
Chemist Mike Schafer analyzing a water sample.
Credit: Bruce Tepper/ANSP
Fisheries scientist David Keller examines a fish for environmental toxins.
Credit: Bruce Tepper/ANSP
Ornithology
Paleontology
Entomology

Entomologist Isabelle Betancourt with a cicada specimen from the Academy’s world-renowned Entomology Collection of about 4 million specimens.
Credit: ANSP