Iridescent nature

Mr. James H. Nicholson

Specimen: Live coral Goniastrea sp., known as green brain coral. One full polyp in the center is shown with four surrounding polyps.
Walled corallites are purple.
Technique: Phase contrast illumination

Mr. Charles Krebs

Specimen: Rotifer Floscularia ringens feeding. Its rapidly beating cilia (hair-like structures) bring water containing food to the rotifer
Technique: Differential interference contrast microscopy

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Ms. Christina Zimmerman

Specimen: Lobularia maritima (sweet alyssum)
Technique: Fluorescence, Z-stack of 10 images, 4x

Dr. Andreas Schmidt-Rhaesa

Specimen: Halammohydra schulzei, a hydra-type fresh-water cnidarian less than 1 millimeter long
Technique: Confocal microscopy