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Close up of first and fourth instars of mosquito larvae and pupa,
amazing inhabitants of the microworld under a microscope
Developmental stage pupal, pupa of cabbage stem weevil called also cabbage seedstalk curculio, Ceutorhynchus pallidactylus (synonym quadridens).
Structure of Escherichia Coli
Micro photo of Tardigrade
An oriental glass frog sat on a leaf protecting its egg clutch from predators. This frog is endemic to the island of Tobago.
The pupae of stickleback moth are on branches in the wild, North China
Close up of gum nut
Planarian parasite (flatworm) under microscope view.
Natural agate surfaces, suitable for backgrounds and wallpapers.
silkworm inside the cocoon while making the cocoon
Liver Fluke Section under light microscope with white background
Representatives of the Lemnaceae, the duckweed family, are well-adapted for use as bioindicators for testing soil and water for toxic substances.  Their rapid multiplication and the simplicity of their anatomy are important advantages for this use.
Trematode parasite under a microscope
Leiden leaf c.s. under microscope
White Mulberry
Planarian parasite (flatworm) under microscope view.
Close-up shooting of a green agate stone mineral surface isolated on white background. Its a macro shot shows nature beautiful details with back lit. Agate is a kind of natural gemstone. Abstract pattern. Good for Wallpaper texture background. Turquoise, blue
Light microscope micrograph of a retina stained with the Golgi method. In the inner layer there are many amacrine cells with pear-shaped cell bodies located in the inner nuclear layer and dendrites ending in the inner plexiform layer.
Photomicrograph of flatworm,
Autumn maple leaves background. Colorful maple leaves background. Autumn maple leaves background
Botany and travel photography.
Egg  clump of the rare and endangered Kloof frog, also known as the Natal diving frog, or Boneberg's frog (Natalobatrachus bonebergi) hanging on vegetation above a slow moving stream in a forest
Macro takes a picture of a pachira.
Study of Parasitic helminths (Trematodes) and Ascaris of fishes under a microscope.
plant Zea Stem C.S. under light mircoscope with white background
Flies drowned in the digestive fluids of a pitcher plant leaf, Sarracenia purpurea, an insectivorous plant at the Philbrick-Cricenti Bog in New London, New Hampshire.
lotus seed sac
Photomicrograph of two rotifers. Rapidly rotating cilia at top of heads, internal organs visible. Live specimen. Wet mount, 10X objective, transmitted brightfield illumination.
яйца лягушки в воде
Free Images: "bestof:Callosamia promethea pupa.jpg Callosamia promethea empty cocoon of pupa http //tdserver1 fnal gov/peterson/tom/Moths/Saturniidae/Saturniidae-Pages/PrometheaMoth"
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Promethea Moth cocoon, Megan McCarty80.jpg
Promethea Moth cocoon, Megan McCarty81.jpg
Promethea Moth cocoon, Megan McCarty82.jpg
Male Promethea Moth, Megan McCarty79.jpg
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Chrysoperla-pupa-on-pencil.jpg
KITLV - 37A104 - Markée, Cornelis - Fruit-bearing branch with cocoon, caterpillar and butterfly - Brush drawing - Circa 1763.tif.tiff
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