Norbert Wu / Flamingo Tongue Snail (Cyphoma gibbosum) feeding on Common Sea Fan (Gorgonia ventalina) showing deep purple tone where the Sea Fan has released protective compounds, Saba, Caribbean

Norbert Wu / Azure Vase Sponge (Callyspongia plicifera) fluoresces blue light, Saba Island, Netherlands Antilles

Norbert Wu / Flying Fish (Exocoetidae) uses large pectoral fins to glide through the air, Saba Island, Dutch Antilles

Ralph Pace / Scrawled Filefish (Aluterus scriptus) trio, Saba Island, Caribbean

Michele Westmorland / Mural at docking area, Saba Island in the Dutch Caribbean, Netherlands Antilles, West Indies. August 2006.

Michele Westmorland / Church and museum, The Bottom, Saba Island in the Dutch Caribbean, Netherlands Antilles, West Indies. August 2006.

Michele Westmorland / Church and graveyard, The Bottom, Saba Island in the Dutch Caribbean, Netherlands Antilles, West Indies. August 2006.

Michele Westmorland / View of coastline and school buildings, The Bottom, Saba Island in the Dutch Caribbean, Netherlands Antilles, West Indies. August 2006.

Michele Westmorland / View of coastline and school buildings, The Bottom, Saba Island in the Dutch Caribbean, Netherlands Antilles, West Indies. August 2006.

Michele Westmorland / View of 'The Bottom' on Saba Island in the Dutch Caribbean, Netherlands Antilles, West Indies. August 2006.

Norbert Wu / Azure Vase Sponge (Callyspongia plicifera) showing bioluminescence, Saba Island, Netherlands Antilles

Doug Perrine / Customs house perched on cliff above coast, Saba, Caribbean

Gerry Ellis / Path through elfin rainforest, interior dominated by ferns, Saba Island, Caribbean

Norbert Wu / Boulder Brain Coral (Colpophyllia natans) common in south Florida, Bahamas and Caribbean, Saba, Dutch Antilles

Norbert Wu / French Angelfish (Pomacanthus paru) along coral wall, Saba, Caribbean

Norbert Wu / Flying Gurnard (Dactylopterus volitans) unfolds large wings to confuse and threaten predators, Saba Island, Netherlands Antilles, Caribbean

Ralph Pace / Scrawled Filefish (Aluterus scriptus) and juvenile Parrotfish (Scaridae) caugh in fish trap, Saba Island, Caribbean

Ralph Pace / Scrawled Filefish (Aluterus scriptus) caught in fish trap, Saba Island, Caribbean

Ralph Pace / Goldentail Moray (Gymnothorax miliaris), Saba Island, Caribbean

Ralph Pace / Hawksbill Sea Turtle (Eretmochelys imbricata), Saba Island, Caribbean

Ralph Pace / Live Sharksucker (Echeneis naucrates), Saba Island, Caribbean

Onne van der Wal / View across the Dutch island of Saba, Caribbean.

Roberto Rinaldi / Aerial view of Eustacia Island on the north east end of Gorda Island near Saba rock in the North Sound, British Virgin Islands, BVI

Roberto Rinaldi / Eustasia Island, situated on the north east end of Gorda Island near Saba rock in the North Sound British Virgin Islands (BVI).

Norbert Wu / Island of Saba, a steep volcanic island that plunges into the sea, Caribbean

Joel Sartore / Photo Ark / Saba Island iguana (Iguana melanoderma) female, head portrait, IguanaLand, Florida. Captive, occurs in Saba and Montserrat, Caribbean. Critically endangered

Joel Sartore / Photo Ark / Saba Island iguana (Iguana melanoderma) female, head portrait, IguanaLand, Florida. Captive, occurs in Saba and Montserrat, Caribbean. Critically endangered