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Gills of a giant catfish (Silurus glanius)
stx2a is a subtype of Shiga toxin-producing E. coli (STEC) linked to Hemolytic Uremic Syndrome (HUS), a severe condition impacting kidney function and blood clotting. STEC poses a significant risk of foodborne illness and can spread within communities including family members.
Slime molds, as a group, are polyphyletic under the microscope for education.
Natural agate surfaces, suitable for backgrounds and wallpapers.
Close up egg with adult of parasite findind with microscope in parasitology.
In vitro bacterial culture
Long sectionplant vascular tissue under the light microscope view for education.
Trematode parasite under a microscope
Detail of a Coprinus mushroom under the microscope.
abstract imagery of a fusion of colors and surfaces
Demodex folliculorum - parasitic mite on the eyelashes of a human eye, microscope
Slice of natural crystal for patterns and textures use with high resolution.
the tail of Aelurostrongylus abstrusus, cat lungworm under the microscope
plant Dandelion Fuzz W.M. under light mircoscope with white background
Argyrophilic cells in the villi epithelium of the small intestine. They are enteroendocrine cells (for example, secretin S cells).\
Aspergillus fumigatus is one of the most common Aspergillus species to cause disease in individuals with an immunodeficiency. This pathogen primarily causes invasive infection in the lung.
Aspergillus (mold) under the light microscopic view for education.
Chinese lantern
Microscopic image of fungus growth
Bacterial colonies (Bacillus subtilis)
Photomicrograph of newly hatched freshwater leech. Note multiple eyes at head and second attachment sucker at tail. Body length approx. 3 mm. Live specimen. Wet mount, 5X objective, transmitted brightfield illumination.
Host cells with spores (mold) are inside wood under the microscope for education.
Amazing Colorful Agate Crystal stone cross texture background.
Bundles of collagen fibers in a connective tissue stained with a silver method.  The collagen fibers show a typical wavy appearance.
Looking through a window underwater where limpets and saline have grown over window.
Section of a human hair follicle in skin under the microscope
Black and white image of a long type of mitochondria.\nCan be used to cover biology booklets and presentations.
The salmon louse, Lepeophtheirus salmonis, is a health hazard for wild as well as farmed salmonids. The parasite feeds on the skin, mucus and blood from the fish. Coloured scanning electron micrograph (SEM), magnified x300 when printed at 10cm wide.
the tail of a redfish
Free Images: "bestof:Delistes luxatus gills usgs.jpg en Deltistes luxatus gills infected with Flavobacterium columnare USGS photo 2003-08-15 http //www fws gov/canvfhc/showReport"
Little_Bat,_Long_Traveler.jpg
Hello_There,_Manatee.jpg
Protecting_Tranquilized_Bea.jpg
Andrena_personata,_f,_md,_eastern_neck_nwr,_side_2015-05-26-05.52.54_ZS_PMax.jpg
Andrena_personata,_f,_md,_eastern_neck_nwr,_back_2015-05-26-05.43.56_ZS_PMax.jpg
Polythemusmoth.jpg
Coelioxys_dolichos,_m,_side,_md,_kent_county_2014-07-21-12.19.17_ZS_PMax.jpg
Coelioxys_dolichos,_f,_faceclose,_md,_kent_county_2014-07-21-11.33.42_ZS_PMax.jpg
Coelioxys_dolichos,_m,_face,_md,_kent_county_2014-07-21-12.09.38_ZS_PMax.jpg
Stelis_louisae,_M,_Back1,_MD,_Dorchester_County_2015-09-22-13.00.30_ZS_PMax_UDR.jpg
Melissodes_comptoides,_m,_face,_Kent_Co_2015-12-03-11.00.jpg
Melissodes_comptoides,_m,_side,_Kent_Co_2015-12-03-11.13.jpg
Conura_dema?,_U,_Maryland,_side_2015-07-10-16.46.28_ZS_PMax_UDR.jpg
2014 Washington Landslide.jpg
A_View_From_Above.jpg
Megachile_petulans,_M,_side,_Dorchester_Co,_MD_2015-09-01-11.23.13_ZS_PMax_UDR.jpg
Megachile_petulans,_M,_face,_Dorchester_Co,_MD_2015-08-27-14.48.17_ZS_PMax_UDR.jpg
Isotria verticillata USFWS-1.jpg
Megachile_petulans,_M,_back,_Dorchester_Co,_MD_2015-08-27-14.36.02_ZS_PMax_UDR.jpg
Egegik Village on the Alaska Peninsula.jpg
Pahoeoe_fountain_edit3.jpg
Triepeolus_concavus,_M,_side,_Dorchester_Co,_MD_2015-09-01-12.34.25_ZS_PMax_UDR.jpg
Triepeolus_concavus,_M,_back,_Dorchester_Co,_MD_2015-09-01-11.47.37_ZS_PMax_UDR.jpg
Megachile_sculpturalis,_f,_back,_md,_kent_county_2014-07-21-12.24.59_ZS_PMax.jpg
Triepeolus_concavus,_M,_face,_Dorchester_Co,_MD_2015-09-01-12.11.29_ZS_PMax_UDR.jpg
Flooding.jpg
Lunar libration with phase2.gif
Lunar libration with phase Oct 2007.gif
Cave basalt formation.jpg
Hylaeus_ornatus,_F,_Side1,_MD,_Dorchester_County_2015-09-17-10.58.21_ZS_PMax_UDR.jpg
Volcanic crater at Ingakslugwat hills.jpg
Volcano eruption geology picture.jpg
Melissodes_tepaneca,_f,_face,_SC,_Jasper_Co_2015-11-24-17.39.jpg
Melissodes_tepaneca,_f,_back,_SC,_Jasper_Co_2015-11-24-17.12.jpg
Melissodes_tepaneca,_f,_side,_SC,_Jasper_Co_2015-11-24-18.09.jpg
Calming.jpg
Palila_Nestlings.jpg
Owwwwwl!.jpg
Polemonium vanbruntiae FWS-2.jpg
Rhadinaea_flavilata.jpg
American goldfinch.jpg
LongnoseSucker.jpg
Kanaga_Volcano.jpg
Polemonium vanbruntiae FWS-1.jpg
Lake floatplane wake.jpg
Close up side view of red cap and yellow gills of mushroom.jpg
Silene_caroliniana_FWS-2.jpg
Linum_virginianum_FWS-2.jpg
Linum_virginianum_FWS-1.jpg
Panax_quinquefolius_FWS-4x3.jpg
Breaking_Wave.jpg
Stelis_australis,_F,_side,_Sandhills_NWR,_South_Carolina_2012-11-19-18.51.14_ZS_PMax.jpg
Coelioxys_dolichos,_f,_back,_md,_kent_county_2014-07-21-11.18.01_ZS_PMax.jpg
Coelioxys_dolichos,_f,_face,_md,_kent_county_2014-07-21-11.25.42_ZS_PMax.jpg
Coelioxys_dolichos,_f,_side,_md,_kent_county_2014-07-21-11.44.33_ZS_PMax.jpg
Harmful_Water_Organisms.jpg
Observation deck on shoreline.jpg
Coreopsis major FWS-1 4x3.jpg
Lower Klamath NWR, Oregon.JPG
Lower Klamath Lake marsh.jpg
Three_Arch_Rocks_National_Wildlife_Refuge.jpg
Oregon_Islands_National_Wildlife_Refuge.jpg
Three_cheetahs_sitting.jpg
King_Eiders.jpg
Jaguar_animal_panthera_onca.jpg
Northern_Cardinal_(Cardinalis_cardinalis).jpg
Clintonia_umbellulata_FWS-4x3.jpg
Sioux_Falls.jpg
Anthophora-abrupta,-female,-back_2012-07-09-16.34.25-ZS-PMax.jpg
Andrena_carlini,_m,_side,_2016-04-05-13.22.jpg
Andrena,_carlini,_m,_face,_2016-04-05-13.06.jpg
Andrena,_carlini,_m,_2016-04-05-12.16.jpg
Andrena_forbesii,_f,_back_Maryland_2016-03-29-14.45.jpg
Akutan_Hot_Springs.jpg
Megachile_mendica,_m,_side,_prince_george's_co,_md_2016-04-19-11.11.jpg
Dwarf crested iris iris cristata purple flower.jpg
Orthoporus spp New Mexico.jpg
Dwarf crested iris flower.jpg
Desert catchfly.jpg
Viola pubescens scabriuscula FWS-1.jpg
Oenothera biennis FWS-00.jpg
Oenothera rhombipetala FWS-00.jpg
Phrynosoma hernandesi short horned lizard.jpg
Polemonium vanbruntiae FWS-1-4x3.jpg
Female loggerhead sea turtle caretta caretta.jpg
Pedicularis_furbishiae.jpg
Ragged_island_02.jpg
Agalinis_acuta_at_Trustom_Pond_NWR.jpg
Kanuti_Lake_Camp_Solar_power_system.jpg
Lilium_superbum_FWS-4x3.jpg
Oenothera_rhombipetala_FWS-01.jpg
Oenothera_biennis_FWS-01.jpg
Oenothera_fruticosa_FWS-01.jpg
Viola_sororia_FWS-2.JPG
Ulak_Island_Delarof_Islands.jpg
Velvet_Ant,_side,_Badlands,_Pennington_Co,_SD_2013-12-31-14.13.37_ZS_PMax.jpg
Trachusa_ridingsii,_F,_side,_Sandhills_NWR,_South_Carolina_2012-11-16-15.36.jpg
Stelis_australis,_F,_back1,_Sandhills_NWR,_South_Carolina_2012-11-19-18.22.42_ZS_PMax.jpg
We_Have_a_Lava_Love_for_Ya!.jpg
Andrena_israel,_f,_israel,_side_2014-10-11-16.03.18_ZS_PMax.jpg
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