Tim Fitzharris / Rock formation and palm trees on beach, Hidden Beach, Palawan, Philippines

Shane P. White / Purple Bougainvillea (Bougainvillea spectabilis) flowering, Saint Lucia, Caribbean

Shane P. White / Island, Martinique, Caribbean

Shane P. White / Boat near tropical island, Coron Island, Philippines

Tim Laman / Aerial view volcanic peak and coastal town of Bora Bora Island, Society Islands, French Polynesia. July 2006

Juergen Freund / Marine polyclad flatworm (Polycladida)

Juergen Freund / Marine polyclad flatworm (Polycladida)

Shane P. White / House on island, Trinidad and Tobago, Caribbean

Shane P. White / Coast, Trinidad and Tobago, Caribbean

Shane P. White / Creek in rainforest, Jamaica

Shane P. White / Plastic washed up on shore, Santo Domingo, Dominican Republic, Caribbean

Shane P. White / Coastal city, Roseau, Dominica, Caribbean

Martin van Lokven / Tropical island, Saint Joseph Atoll, Seychelles

Shane P. White / Tourist boats in harbor, Coron Island, Philippines