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Pennsylvania

Vernal Pools

Buttressed mossy tree trunk.

Herbaceous pool.

Caddisfly cases.

Grassy shrub pool.

Jefferson Salamander (Ambystoma jeffersonianum).

Sphagnum tree island.

Spring Peeper singing (Pseudacris crucifer).

Sphagnum tree island close-up.

Spotted salamander coming out of pool (Ambystoma maculatum).

Swamp Darner (Epiaeschna heros).

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