Martin Dohrn / John Ruthven swimming in the Bioluminescence Bay in Vieques, Puerto Rico. Dinoflagellates create the bioluminescense when disturbed. Model released.

John Cancalosi / Cattle Egret (Bubulcus ibis) standing with nesting material. Costa Rican tropical rainforest.

John Cancalosi / Boa Constrictor (Boa constrictor) shedding skin from head. Guanacaste National Park, Costa Rican tropical rainforest.

Rolf Nussbaumer / Bananaquit feeding on banana flower {Coereba flaveola} Puerto Rico, Caribbean.

Rolf Nussbaumer / Stream in rainforest, Puerto Rico

Mark Moffett / Caribbean Tree Frog (Eleutherodactylus coqui) parachuting from tree, this frog holds a cup of air beneath it with its arms as if it were a parachute, leaping to the ground each morning, Puerto Rico

Jose B. Ruiz / Common toad walking at night, Spain

Doug Wechsler / Giant toad {Bufo marinus} introduced species to Puerto Rico, Caribbean

Martin Dohrn / Bioluminescence - pool with Snook, Snapper and a Stingray fish, Bio Bay, Vieques Island, Puerto Rico. Central America. Starlight image intensifier camera image taken with no artificial light.

Doug Wechsler / Treefern in subtropical rainforest. Luquillo NF, Puerto Rico, West Indies

Eladio Fernandez / Puerto Rico palmetto (Sabal causarium) leaf. Hispaniola.

Eladio Fernandez / Royal palm (Roystonea borinquena) trees and tropical forest edge, Hispaniola.