Research & Collections Photo Gallery

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  • Ted Daeschler holding dimetron jaw.
    Ted Daeschler, PhD, the Academy’s vice president for collections, holds a cast of the jaw specimen.
  • Dimetron illustration by Danielle Dufault/Royal Ontario Museum
    A depiction of Dimetrodon with the section of jaw that is now fossilized and a part of the Academy’s collection highlighted. Drawing by Danielle Dufault, Royal Ontario Museum.
  • Dimetron lithograph
    A lithograph of the fossil from around the time it originally made its way to the Academy’s collection.
  • jaw and scan. Photo courtesy Kirsten Brink
    The Dimetrodon fossil, left, with the CT scan of it used by the Canadian research team. Photo courtesy Kirsten Brink.

Rare Butterfly

  • Live Gynandromorph
    The live Lexias pardais was a shocking delight when it was spotted in the Academy’s Butterflies! exhibit.
    Credit: Isa Betancourt/ANSP

  • Lexias paradalis specimen
    The right wings of this preserved Lexias pardais are characteristic of the female of the species and the left wings are typical of the male. The body’s coloration is exactly split down the middle lengthwise.
    Photo J.D. Weintraub/ANSP Entomology

  • Chris Johnson, Jason Weintraub, butterfly
    Academy volunteer Chris Johnson (left), here with entomologist Jason Weintraub and the preserved Lexias pardais, couldn’t believe his eyes when he first spotted the rare butterfly in the Butterflies! exhibit.
    Credit: Doug Wechsler/VIREO

Delaware Watershed Conservation Program

  • creekwork120x80
    Academy scientist Dave Keller (l to r), Drexel University student Jillian Adair, and Academy research technician Amanda Chan collect algae and examine the rocks and water depth in Manatawny Creek as part of the Delaware Watershed Conservation Program.
    Photo Credit: John Strickler/The Mercury
  • measuringstream120x80
    Academy scientist Dr. Jerry Mead (left), with Drexel University students Emily Johnson, and Jerome Czarick, record stream depth and velocity in Little Bushkill Creek, as part of the Delaware Watershed Conservation Program.
    Photo Credit: Roger L. Thomas/ANSP
  • streamdata120x80
    Academy research technician Amanda Chan documents the vegetation and physical characteristics of the stream and bank for the Delaware Watershed Conservation Program, sponsored by the William Penn Foundation.
    Photo Credit: ANSP Archives

  • 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
  •  Fisheries scientist David Heller examines a fish for environmental toxins.
    Credit: Bruce Tepper/ANSP
  •  Phycologist Dr. Ling Ren looking at diatoms in her microscope.
    Credit: Bruce Tepper/ANSP


  • Dr. Nate Rice showing a hummingbird specimen from the Ornithology collection to visiting students.
    Credit: Dennis Murphy/ANSP



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