WILL NICHOLLS, PETAPIXEL:
The Nikon Small World Photomicrography Competition celebrates the beautiful, weird, wonderful, and microscopic things in our world through photos captured using a light microscope. Now in its 43rd year, the competition continues to impress.
The 2017 competition received over 2,000 entries from 88 different countries. Many of the images were taken during scientific research projects.
Read more, and see the winning photos, from here.