First Prize in the 41st Annual Nikon Small World Photomicrography Competition was awarded to Australian Ralph Claus Grimm for capturing an amazing close-up of the eye of a honey bee covered in dandelion pollen.
Grimm, a high school teacher from Queensland, self-taught microscopist and former bee keeper, was recognized along with more than 80 other international winners. He hopes his image can serve as a voice for this endangered insect that plays such a critical function in pollinating the world's crops.
Read on to see more winning images from the competition.
An image of the colon of a mouse that was born germ-free, or completely sterile of microbes. The mouse was colonized with a human microbiota.
Photographed by Kristen Earle, Gabriel Billings, KC Huang & Justin Sonnenburg, Stanford, California
This image shows an entrance to the trap (or bladder) of a Humped Bladderwort (Urticulatia gibba), a carnivorous freshwater plant.
Photographed by Dr. Igor Siwanowicz, Ashburn, Virginia
A photo of a mini-organ, known as an organoid, grown from human mammary gland tissue in a lab.
Photographed by Daniel H. Miller & Ethan S. Sokol, Cambridge, Massachusetts
Live imaging of perfused vasculature in a mouse brain with glioblastoma.
Photographed by Dr. Giorgio Seano & Dr. Rakesh K. Jain, Harvard Medical School, Boston
Spore capsule of a moss (Bryum sp.)
Photographed by Henri Koskinen, Helsinki, Finland
A starfish photographed using confocal microscopy.
Photographed by Evan Darling, Memorial Sloan Kettering Cancer Center, New York
An image of nerves and blood vessels in a mouse ear skin.
Photographed by Dr. Tomoko, Yamazaki National Institutes of Health (NIH), Bethesda, Maryland
Young buds of Arabidopsis (a flowering plant).
Dr. Nathanael Prunet, Pasadena, California
A live clam shrimp (Cyzicus mexicanus).
Photographed by Ian Gardiner, Calgary, Canada
Fern sorus at varying levels of maturity.
Photographed by Rogelio Moreno Gill, Panama
Developing sea mullet (Mugil cephalus) embryos.
Hannah Sheppard-Brennand, Sydney, Australia
This image shows tentacles of a carnivorous plant (Drosera sp.).
Photographed by Jose R Almodovar, University of Puerto Rico
An Australian grass (Austrostipa nodosa) seed.
Photographed by Viktor Sykora, Prague, Czech Republic
The anthers of a flowering plant (Arabidopsis thaliana).
Photographed by Dr. Heiti Paves, Tallinn, Estonia
An image of feeding rotifers (Floscularia ringens).
Photographed by Charles B. Krebs, Issaquah, Washington
A black witch-hazel (Trichodactylus crinitus) leaf producing crystals to defend against herbivores.
Photographed by Dr. David Maitland, Feltwell, UK
Planktonic larva of a horseshoe worm (phoronid).
Photographed by Dr. Richard R. Kirby, UK
A hairyback worm (Chaetonotus sp.) and algae (Micrasterias sp.).
Photographed by Roland Gross, Gruenen, Switzerland
The suction cups on a diving beetle (Dytiscus sp.) foreleg.
Photographed by Frank Reiser, Garden City, New York
A liverwort (Lepidolaena taylorii) plant with modified leaves (water sacs), which are often home to aquatic microorganisms such as rotifers.
Photographed by Susan Tremblay, Berkeley, California
A detail of a jewel beetle (Coleoptera Buprestidae).
Photographed by Dr. Luca Toledano, Verona, Italy
A three-day old Peanut worm (Sipuncula), serotonin in the nervous system.
Photographed by Dr. Michael J. Boyle, Fort Pierce, Florida
A red fossil coral slab.
Photographed by Norm Baker, Baltimore, Maryland
An adult marine worm (Autolytus).
Photographed by Mike Crutchley, Wales, UK