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

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  A snow crystal magnified
  Credit: Kenneth Libbrecht
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  Group of different diatoms magnified
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  A single diatom magnified
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  Ernst Haeckel’s illustration of sea creatures
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  Ceramic diatom sculptures by Marguerita Hagan
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  Diatom measuring instruments used by the Academy’s renowned scientist Ruth Patrick

Sea Change

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  Sea Butterfly – Pteropod Limacina helicina
  Credit: Alexander Semenov

Permian Monsters

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  Sculpture of a Permian dragonfly, enormous compared to today’s dragonflies.
  Credit: Ramon Torres
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  Cacops was small compared to other temnospondyl amphibians, growing up to 18 inches long.
  Credit: Ramon Torres
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  Viewing reconstructions of a Permian beast with skin and without.
  Credit: Ramon Torres
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  Getting a close-up view.
  Credit: Ramon Torres
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  Permian Monsters is enlightening for both children and adults.
  Credit: Ramon Torres
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  Permian Monsters creatures Gorgonopsid Inostrancevia (left) and Scutosaurus (right)
  Credit: Gondwana Studios
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  An animatronic Dinocephalian Titanophoneus with a mural backdrop of its setting
  Credit: Gondwana Studios
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  Dinocephalian Estemmenosuchus from Permian Monsters
  Credit: Gondwana Studios
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  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
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  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
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  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