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.”

Fans can also vote for their favorite image for the Popular Vote contest. To vote, go to the contest’s home page 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