Fleischmann's Glass Frog
These small frogs (about the size of a nickel when flattened and sleeping under a leaf) are common up at 1500 meters in Reserva La Carpintera near Cartago, Costa Rica. On rainy nights you hear their sharp whistle-like calls all around bodies of water, where the females lay eggs on the underside of broad-leafed plants, like heliconias, bananas, philodendrons, etc. When the eggs hatch, the tadpoles drop into the water below.
this image was taken during the day with my nikon D850 and 105mm f/2.8 micro nikkor and i used an off camera flash at low power (1/32) which rendered the background so underexposed it came out black, and that was intentional:
this image was also taken during the day with the same camera and lens, but without a flash:
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Ty! 
