Scapholeberis mucronata,a head and an eye of a water flea. The size of the whole animal is about 0.6 mm, while the head is just a small part of the body. This image is made with a 100x lens with DIC illumination.
Freshwater colony of volvox algae. The image is made in polarized light. The green spots inside the sphere are resting stages of the algae in which the organism can endure winter cold and desiccation.
A freshwater copepod, possibly Mesocyclops edax. The size of the animal is about 1 mm. The shot taken in polarized light and muscles and fibrillar structures appear as bright bands. These copepods can predate on mosquito larvae and various other invertebrates.
