The stray dogs of Puerto Rico

These dogs don’t look happy — and they’re not. While they’re on one of the most beautiful Caribbean beaches on the island of Vieques, they’re among the 200,000 dogs in Puerto Rico that were abandoned or abused and left to fend for themselves.

Vieques National Wildlife Refuge is full of life

I like to use contrast in images. Often that contrast comes from light and dark. Other times it's from opposite colors.

In Puerto Rico, I had an opportunity to capture contrast in two butterflies — and the contrast was essentially the element of time.

Behind the scenes: Bioluminescence, Mosquito Bay, Vieques

Whether you call it Mosquito Bay, Bahía Bioluminiscente or something else, the bioluminescent bay on the Puerto Rican island of Vieques is the world’s brightest. The Guinness Book of World Records says so.

The glow comes from dinoflagellates, which are not particularly rare. They’re a type of plankton and are found in most ocean water. What makes Mosquito Bay special, however, is how concentrated they are there.