For a better experience, click the Compatibility Mode icon above to turn off Compatibility Mode, which is only for viewing older websites.

Changing Exhibits Photo Gallery

These images are solely for use by the working press to illustrate a story about the Academy of Natural Sciences. All other potential uses must be cleared through the Communications Office.

Click thumbnails to view at high resolution. (Opens a new window.)

Invisible World of Water
Nov. 13, 2021-April 17, 2022

  • IWOW entry

  • A snow crystal magnified
    Credit: Kenneth Libbrecht
  • diatoms arrangement
    Group of different diatoms magnified
  • diatom black and white
    A single diatom magnified
  • diatom scientific illustration
    Ernst Haeckel’s illustration of sea creatures
  • sculptures of diatoms
  • 3 D diatom sculpture
    Ceramic diatom sculptures by Marguerita Hagan
  • Ruth Patrick display
    Diatom measuring instruments used by the Academy’s renowned scientist Ruth Patrick

Sea Change

  • case in Sea Change exhibit
  • Sea Change exhibit in Spotlight Gallery
  • pteropoda
    Sea Butterfly – Pteropod Limacina helicina
    Credit: Alexander Semenov

Permian Monsters

  • flying creature in glass
    Sculpture of a Permian dragonfly, enormous compared to today’s dragonflies.
    Credit: Ramon Torres
  • small Cacops on mount
    Cacops was small compared to other temnospondyl amphibians, growing up to 18 inches long.
    Credit: Ramon Torres
  • 2 women examine fossil
    Viewing reconstructions of a Permian beast with skin and without.
    Credit: Ramon Torres
  • dad and son and creature
    Getting a close-up view.
    Credit: Ramon Torres
  • man bends toward creature
    Permian Monsters is enlightening for both children and adults.
    Credit: Ramon Torres
  • Gorgonopsid Inostrancevia(left) Scutosaurus (right)
    Permian Monsters creatures Gorgonopsid Inostrancevia (left) and Scutosaurus (right)
    Credit: Gondwana Studios
  • Dinocephalian Titanophoneus animatronic
    An animatronic Dinocephalian Titanophoneus with a mural backdrop of its setting
    Credit: Gondwana Studios
  • Dinocephalian Estemmenosuchus
    Dinocephalian Estemmenosuchus from Permian Monsters
    Credit: Gondwana Studios
  • carnivore Titanophoneus
    Titanophoneus is an extinct meat-eater that had a long heavy snout on a 2-feet-six-inch skull. See it in Permian Monsters: Life Before the Dinosaurs, Nov. 21, 2020–Jan. 17, 2022.
    Credit: Gondwana Studios
  • artwork of Permian creatures
    Vivid artwork brings to life the bizarre-looking creatures of the Permian period that predated the dinosaurs. See it in Permian Monsters: Life Before the Dinosaurs, Nov. 21, 2020–Jan. 17, 2022.
    Credit: Gondwana Studios
  • 2 Permian creatures
    Before dinosaurs came on the scene, extraordinary and bizarre creatures roamed the planet. See some of them in Permian Monsters: Life Before the Dinosaurs, Nov. 21, 2020–Jan. 17, 2022 at the Academy of Natural Sciences of Drexel University. Creature facing left is Inonstrancevia; facing right is Scutosaurus.
    Credit: Gondwana Studios