Pia Scanlon/Nikon
  • First place ranking in the Nikon Small World 2016 photography contest is Dr. Oscar Ruiz of The University of Texas MD Anderson Cancer Center in Houston, Texas, for "Four-day-old zebrafish embryo.” </br></br>Fans can also vote for their favorite image for the Popular Vote contest. To vote, go to the contest’s <a href="https://nikonsmallworld.strutta.me/gallery" target="external">home page</a> by the end of today. Winners will be announced Wednesday and will receive a popular Nikon prize pack and special recognition on the Nikon website.
    Dr. Oscar Ruiz/Nikon
  • Second place ranking image in the Nikon Small World 2016 photography contest is Douglas L. Moore of University of Wisconsin - Stevens Point Museum of Natural History in Stevens Point, Wisconsin, for "Polished slab of Teepee Canyon agate."
    Douglas L. Moore/Nikon
  • Third place ranking image in the Nikon Small World 2016 photography contest is Rebecca Nutbrown of University of Oxford, Nuffield Department of Clinical Neurosciences in Oxford, United Kingdom, for "Culture of neurons (stained green) derived from human skin cells, and Schwann cells, a second type of brain cell (stained red)."
    Rebecca Nutbrown/Nikon
  • Fourth place ranking image in the Nikon Small World 2016 photography contest is Jochen Schroeder of Chiang Mai, Thailand, for "Butterfly proboscis."
    Jochen Schroeder/Nikon
  • Fifth place ranking image in the Nikon Small World 2016 photography contest is Dr. Igor Siwanowicz of Howard Hughes Medical Institute (HHMI) atJanelia Research Campus in Ashburn, Virginia, for "Front foot (tarsus) of a male diving beetle."
    Dr. Igor Siwanowicz/Nikon
  • Sixth place ranking image in the Nikon Small World 2016 photography contest is Marek Mis of Marek Mis Photography in Suwalki, Podlaskie, Poland, for "Air bubbles formed from melted ascorbic acid crystals."
    Marek Mis/Nikon
  • Seventh place ranking image in the Nikon Small World 2016 photography contest is Dr. David Maitland from Feltwell, United Kingdom, for "Leaves of Selaginella (lesser club moss)."
    Dr. David Maitland/Nikon
  • Eighth place ranking image in the Nikon Small World 2016 photography contest is Samuel Silberman of Monoson Yahud, Israel, for "Wildflower stamens."
    Samuel Silberman/Nikon
  • Nineth place ranking image in the Nikon Small World 2016 photography contest is Vin Kitayama and Sanae Kitayama of TVinsanchi Art Museum Azumino in Azumino, Nagano, Japan, for "Espresso coffee crystals."
    Vin Kitayama/Sanae Kitayama/Nikon
  • Tenth place ranking image in the Nikon Small World 2016 photography contest is Rogelio Moreno Gill of Panama, Panama, for "Frontonia (showing ingested food, cilia, mouth and trichocysts)."
    Rogelio Moreno Gill/Nikon
  • Eleventh place ranking image in the Nikon Small World 2016 photography contest is Francis Sneyers of Brecht, Belgium, for "Scales of a butterfly wing underside (Vanessa atalanta)."
    Francis Sneyers/Nikon
  • Twelfth place ranking image in the Nikon Small World 2016 photography contest is Dr. Dylan Brunette of Vanderbilt University School of Medicine for "Human HeLa cell undergoing cell division (cytokinesis). DNA (yellow), myosin II (blue) and actin filaments (red)."
    Dr. Dylan Brunette/Nikon
  • Thirteenth place ranking image in the Nikon Small World 2016 photography contest is Walter Piorkowski of South Beloit, Illinois, for "Poison fangs of a centipede (Lithobius erythrocephalus)."
    Walter Piorkowski/Nikon
  • Fourteenth place ranking image in the Nikon Small World 2016 photography contest is Dr. Keunyoung Kim of University of California, San Diego, National Center for Microscopy and Imaging Research (NCMIR) in La Jolla, California, for "Mouse retinal ganglion cells."
    Dr. Keunyoung Kim/Nikon
  • Fifteenth place ranking image in the Nikon Small World 2016 photography contest is Geir Drange of Asker, Norway, for "Head section of an orange ladybird (Halyzia sedecimguttata)."
    Geir Drange/Nikon
  • Sixteenth place ranking image in the Nikon Small World 2016 photography contest is Stefano Barone of Diatom Shop in Palazzo Pignano, Italy, for "65 fossil Radiolarians (zooplankton) carefully arranged by hand in Victorian style."
    Stefano Barone/Nikon
  • Seventeenth place ranking image in the Nikon Small World 2016 photography contest is Jose Almodovar of University of Puerto Rico, Mayaguez Campus, Biology Department for "Slime mold (mixomicete)."
    Jose Almodovar/Nikon
  • Eighteenth place ranking image in the Nikon Small World 2016 photography contest is Pia Scanlon of Department of Agriculture and Food for Western Australia, Biosecurity and Regulation - Pest Diagnostics in South Perth, Western Australia, Australia, for "Parts of wing-cover (elytron), abdominal segments and hind leg of a broad-shouldered leaf beetle (Oreina cacaliae)."
    Pia Scanlon/Nikon
  • Nineteenth ranking image in the Nikon Small World 2016 photography contest is Dr. Gist F. Croft, Lauren Pietilla, Stephanie Tse, Dr. Szilvia Galgoczi, Maria Fenner, Dr. Ali H. Brivanlou of Rockefeller University, Briyanlou Laboratory in New York for "Human neural rosette primordial brain cells, differentiated from embryonic stem cells."
    Croft/Pietilla/Tse/Galgoczi/Fenner/Brivanlou/Nikon
  • Twentieth place ranking image in the Nikon Small World 2016 photography contest is Michael Crutchley of Haverfordwest, Pembrokeshire in the United Kingdom for "Cow dung."</br></br>Nikon is leaving the popular vote to the fans. To vote for your favorite go to the contest's <a href="https://nikonsmallworld.strutta.me/gallery" target="external">home page</a> to cast your vote.
    Michael Crutchley/Nikon