Glass Tree Frog, Cloud Forest, EcuadorThere’s a saying that you can gauge the health of an environment by the health of its frogs. And there’s a sad truth to it. When frogs start to die off in a particular area, more often than not it can be traced back to toxicity in that environment. One of the reasons frogs are so susceptible is because they breath through their skin. Any imbalance in the air can be lethal. Unfortunately, frog species worldwide have been declining in numbers in recent decades. Frogs are a particular favorite of mine, and I always get excited for nocturnal walks in tropical environments to search for these colorful little prophets of the night. This is one of the many species of glass frog that can be found in healthy parts of Central and South America. If photographed from underneath, you’d be able to see the internal organs through that delicate air-breathing skin. Photographed in the mountainous cloud forest of Ecuador. Nikon D700 with Nikkor 105mm macro lens, ISO 200, f/14 at 1/60th of a second, two Nikon SB-900 flash units.