Common Snapping Turtle (Chelydra serpentina) all dug into its nest at the John Heinz National Wildlife Refuge at Tinicum
HeinzTinicum20170311copyrightJohn Heinz Wildlife Refuge Tinicum animals animal beast beasts creature creatures zoology undomesticated animals amphibian frog birds avain aves environment ecology ecosystem environmentalism scenery nature landscape land park national park wetlands wildlifeNorth AmericaUnited States of AmericaAmericaU.S.United StatesUSUSAPennsylvaniaPhiladelphia
