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two arcorns on an old oaktree in Germany
betel palm,dry betel Nut
rough round agate mineral sample with outer shell geode
Bivalvia Fossil inside a limestone rock on moss floor. Gastropods from the jurassic period captured during autumn season.
Large oak tree with a hole at the base on the Somerset levels on a autumnal afternoon
prismatic quartz mineral clusters on rock specimens from the UK
A garden banden snail (Cepaea hortesis) in close-up on a stone in the morning sunlight.
bunch of natural sponges
Close-up of a group of four differently colored stones in a stream bed. Different textures surrounded by cold water.
internal tissue of a sea creature's shell. pores. macro photo.
Concretion formations in a rock in the Grand Staircase-Escalante National Monument in southern Utah during the fall. Concretions are precipitated mineral deposits that form in the spaces of sedimentary rock.
Apache tear (obsidian) from the USA
Photomicrograph of freshwater leech. Sucker attached to cover slip at bottom. Live specimen. Wet mount, 2.5X objective, transmitted brightfield illumination. Note - motion blur of live animal, very shallow depth of field, chromatic aberration and uneven focus are inherent in light microscopy.
The normal liver cells or hepatocytes contain lipid droplets, more frequent near the central vein of hepatic lobules, that can be demonstrated using osmium tetroxide as fixative. In steatosis or fatty liver disease, the amount of lipid droplets is pathologically very increased.
Mica, silicate phyllosilicate.
Arcos de Valdevez, Portugal-August 19, 2021: Mamoa of Mezío-Giao Archaeological Area.
One raw and dried hazelnut (from Corylus avellana wild tree) freshly fallen on ground leaf in autumn season.
Multi-colored marble rock between white, gray and yellow
A prairie dog peering curiously from his hole. Copy space on the brown dirt.
Hazelnuts on white background
Burl Gall Tumor Disease on Tree Limb Trunk, Savannah-Georgia
a hole in the floor..
Barnacles on rock
Boiling water bubbler Geyser. Active geyser with major eruptions. Yellowstone NP, Wyoming, USA
Acid sulphate mudpool at the Sulphur Flats in Rotorua, New Zealand.
pyrrhotite iron sulfide rare earth mineral
Primary mucinous eccrine adenocarcinoma of skin is a rare malignant cutaneous adnexal tumor which is morphologically indistinguishable from metastatic mucinous carcinoma of non-cutaneous origin. CK7 Immunostain
Landscape in mendoza Argentina
Opal mineral stone sample with white background
Free Images: "bestof:Oak marble gall and inquilines.JPG Oak marble gall with several inquiline escape burrow holes self-made - Roger Griffith 2008-02-23 Rosser1954 Galls on Quercus"
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