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Image of distinction: A red speckled jewel beetle (Chrysochroa buqueti rugicollis) magnified three times. Image Courtesy: Yousef Al Habshi
First place winner: An embryonic hand of a Madagascar giant day gecko. Image Courtesy: Grigorii Timin, Dr Michel Milinkovitch
Second place winner: Breast tissue showing contractile myoepithelial cells wrapped around milk-producing alveoli. Image Courtesy: Dr Caleb Dawson
Image of distinction: A dental drill bit studded with diamond chips. Image Courtesy: Karl E Deckart
Image of distinction: What butterfly scales look like under the magnifying glass. Image Courtesy: Yuan Ji
Image of distinction: A winged ant encased in approximately 20 million-year-old Dominican amber. Image Courtesy: Enrico Bonino
Tenth place: A magnified view of a fly under the chin of a tiger beetle. Image Courtesy: Murat Öztürk
Fifth place: This closeup view of slime mold on a leaf is magnified 10 times normal size. Most slime molds have smooth heads but this pair features what look like wrinkled pompoms. Image Courtesy: Alison Pollack
Sixth place: Unburned pieces of carbon drift away from an extinguished candle in this photograph, magnified 2.5 times normal size. Image Courtesy: Ole Bielfeldt
Seventeenth place: A tail fin of a zebrafish larva with peripheral nerves (green) and extracellular matrix (violet). Image Courtesy: Dr Daniel Wehner & Julia Kolb