Each year, Nikon holds its Small World Photomicrography Competition, showcasing the wonders of a world we can only see through a microscope. These finalists' photos offer unusual views on everything from rain on a butterfly's wing to fossilized dinosaur bones.

The winners for the 2009 competition will be announced this Thursday, October 8th. In the meantime, you can play a few rounds of Identify the Image with more finalist photos on the competition website.

Small Wonders: Finalists From the Nikon Small World Competition [PDN Photo of the Day via Metafilter]

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Shamuel Silberman, Ramat-Gan, Israel
Embryo of guppy fish (40X)

Viktor Sykora, Institute of Pathophysiology, First Medical Faculty, Charles University, Prague, Czech Republic
Hoya carnosa (wax plant) flower (10x)

Sponsored

Massimo Brizzi, Microcosmo Italia, Empoli, Firenze, Italy
Snail eggs (200x)

Daniel Vega, Madrid, Spain
Gall (plant tissue growth) formed by Trigonaspis mendesi (4X)

Karie Holtermann, Rancho Cucamonga, California, United States
Raindrop on butterfly wing (20X)

Norm Barker, Department of Pathology, Johns Hopkins University, School of Medicine, Baltimore, Maryland, United States
Dinosaur bone, Jurassic period (15X)

Gerd A. Guenther, Düsseldorf, Germany
Sonchus asper (spiny sowthistle) flower stem section (150X)

Fabrice Parais, DIREN Basse-Normandie, Hérouville-Saint-Clair, France
Atherix ibis (fly) aquatic larva (25x)

Yanping Wang, Beijing Planetarium, Beijing, China
Snowflake (40X)

Frederique Ruf-Zamojski, California Institute of Technology, Pasadena, California, United States
Zebrafish embryo, 22 hours post-fertilization, living specimen (40X)