This image shows a pair of ovaries from an adult Drosophila female stained for F-actin (yellow) and nuclei (green); follicle cells are marked by GFP (magenta). Taken using confocal microscopy, it achieved 11th place in Nikon's 2019 Photomicrography Competition.

To see more amazing images from this year's competition, download our flipbook, The Spectacular Small World 2019.