The 2017 winner of the Nikon Small World photography contest.
The Nikon Small World in Motion competition celebrates the best of biological processes captured under a microscope.
On Thursday, Nikon announced the top five entries in this year's video competition, with 18 more honorable mentions. A group of independent judges selects the best photos and videos each year, with thousands of participants to choose from.
Take a look at this year's winners and some of the most impressive honorable mentions that made the cut.