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Toxocara canis second stage larvae hatch from eggs in microscope. Toxocariasis, also known as Roundworm Infection, causes disease in humans
Rare Scorpion (Arachnida) inclusion in Burmese amber, Myanmar, Cenomian, Upper Cretaceous, approximately 100 million years ago, age of dinosaurs. Image taken with extreme macro and focus stacking technique.
on a hike on the island of maui, hawai'i - u.s.a.
Close up of small feeding tick with shiny pinhead. Nikon D7200 with Nikon 105mm macro lens & extension tube, SB 21 flash. Photo taken in Gainesville, Florida
the tail of Aelurostrongylus abstrusus, cat lungworm under the microscope
Blastomycosis is a fungal infection caused by inhaling Blastomyces dermatitidis spores. If it involves only the lungs, it is called pulmonary blastomycosis. Only about half of people with the disease have symptoms, which can include fever, cough, night sweats, muscle pains, weight loss, chest pain, and feeling tired.
Study of Parasitic helminths (Trematodes) and Ascaris of fishes under a microscope.
plant Zea Stem C.S. under light mircoscope with white background
Leiden leaf c.s. under microscope
Leaf cutter ants carry cut leaves up branch in single file
Planaria worm in pond water
Pholcus phalangioides Cosmopolitan Cellar Spider. Digitally Enhanced Photograph.
Microscopic view of Dermatophytes. Nail scraping fungus. 100X
Pheochromocytoma, Site: Adrenal gland
Planarian parasite (flatworm) under microscope view.
Liver Fluke Section under light microscope with white background
Corn Snake Eggs Hatching (Pantherophis guttatus) color morph  \
Cow skull in the prairie covered with flies
Freshwater aquatic zooplankton and algae under microscope view
Photomicrograph of rotifer, probably Rotaria rotatoria. Rapidly rotating cilia at top of head, internal organs visible. Green circles are algae. Live specimen. Original image at 40X, wet mount, transmitted brightfield illumination. Indistinct image due to motion blur of live specimen and very shallow depth of field of brightfield illumination.
centropyxis aculeata (amoeboid organism) under the microscope - optical microscope x400 magnification
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Epidermis. Electron microscope micrograph showing a keratinocyte of spinous layer. The epithelial cell has a polygonal shape, central nucleus with nucleolus, cytoplasm full of keratin filament bundles, and numerous dark desmosomes crossing the intercellular spaces.
Costa Rica is a nature lovers paradise with a huge variety of flora and fauna and incredible compliment of exotic birdlife that inhabits the tropical rainforest and coastal habitats
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
Pneumatosis cystoides intestinalis
Scalp and hair follicles of human under the microscope in Lab.
Plant on dry land at Bisti Southern Section, Farmington, New Mexico, USA
Diatoms are photosynthesising algae, they have a siliceous skeleton (frustule) and are found in almost every aquatic environment including fresh and marine waters, soils, in fact almost anywhere moist.
Bulbous garden spider out in the wild
Free Images: "bestof:This is the lovely female of the male previously illustrated. A nest parasite from the dry regions of Mexico and the Southwestern United States, this group"
paranomada_velutina,_f,_arizona,_face_2014-08-09-15.30.33_ZS_PMax.jpg
paranomada_velutina,_f,_arizona,_angle_2014-08-09-15.21.39_ZS_PMax.jpg
Paranomada_velutina,_m,_arizona,_face_2014-08-08-14.19.04_ZS_PMax.jpg
Paranomada_velutina,_m,_arizona,_side_2014-08-08-14.29.42_ZS_PMax.jpg
Paranomada_velutina,_m,_arizona,_angle_2014-08-08-14.11.49_ZS_PMax.jpg
Anthidiellum_ehrhorni,_f,_face,_Cochise_Co._AZ_2016-10-20-14.19.jpg
Anthidiellum_ehrhorni,_m,_back,_Cochise_Co._AZ_2016-10-20-14.43.jpg
Anthidiellum_ehrhorni,_m,_face,_Cochise_Co._AZ_2016-10-20-14.54.jpg
Anthidiellum_ehrhorni,_m,_right_side,_Cochise_Co._AZ_2016-10-20-15.13.jpg
Anthidiellum_ehrhorni,_f,_left_side,_Cochise_Co._AZ_2016-10-20-14.31.jpg
Anthidiellum_ehrhorni,_f,_back,_Cochise_Co._AZ_2016-10-20-14.05.jpg
Triepeolus_distinctus,_m,_anne_arundel_co,_md,_back_2016-08-31-17.40.jpg
Stelis_australis,_M,_Side,_GA,_Baker_County_2015-02-05-13.48.25_ZS_PMax.jpg
Nomada_luteola,_m,_face,_Maryland_2016-04-16-01.26.jpg
Nomada_luteola,_m,_back,_Maryland_2016-04-07-17.03.jpg
Anthophora_californica,_m,_face,_Hidalgo_County,_NM_2016-08-12-18.14.jpg
Anthidium_porterae,_back,_Hidalgo_Co.,_MD_2016-09-30-16.13.jpg
bee_bright_geeen,_m,_argentina,_angle_2014-08-07-16.59.52_ZS_PMax.jpg
bee_bright_geeen,_m,_argentina,_face2_2014-08-07-17.21.49_ZS_PMax.jpg
bee_bright_geeen,_m,_argentina,_side_2014-08-07-17.43.37_ZS_PMax.jpg
Stelis_costalis,_M,_Back,_GA,_Baker_County_2015-01-09-15.24.17_ZS_PMax.jpg
Stelis_costalis,_M,_Face,_GA,_Baker_County_2015-01-09-15.32.35_ZS_PMax.jpg
Nomada_articulata,_m,_talbot,_md,_side_2015-05-17-16.42.36_ZS_PMax.jpg
Nomada_articulata,_m,_talbot,_md,_face_2015-05-17-16.38.02_ZS_PMax.jpg
Nomada_articulata,_m,_Talbot_co,_md,_back_2015-05-17-16.35.16_ZS_PMax.jpg
Bombus_citrinus,_Male,_Face,_Cecil_County,MD_2013-11-14-09.29.06_ZS_PMax.jpg
Tylopelta_gibbera,_male_face_2016-11-11-14.jpg
Eucera_dubitata,_f,_ga,baker,_back_2015-01-08-16.00.12_ZS_PMax.jpg
melecta_pacifica,_f,_md,_pg,_back_2015-05-14-09.29.37_ZS_PMax.jpg
Melecta_pacifica,_f,_face,_Prince_Georges_county_2015-05-14-09.13.54_ZS_PMax.jpg
melecta_pacifica,_f,_side,_md,_pg_2015-05-14-09.54.48_ZS_PMax.jpg
Eucera_dubitata,_f,_ga,baker,_side_2015-01-08-16.14.57_ZS_PMax.jpg
Eucera_dubitata,_f,_ga,baker,_face_2015-01-08-16.10.22_ZS_PMax.jpg
Ancyloscelis_apiformis,_m,_paraguay,_face_2014-08-08-09.52.55_ZS_PMax.jpg
dasypoda,f,_united_kingdom,_side_2014-10-11-20.33.26_ZS_PMax.jpg
dasypoda,f,_united_kingdom,_face_2014-10-11-20.28.43_ZS_PMax.jpg
dasypoda,f,_united_kingdom,_back_2014-10-11-20.21.29_ZS_PMax.jpg
Epeolus_howardi,_back,_Caroline_Co.,_MD_2016-09-20-11.45.jpg
Epeolus_howardi,_right,_Caroline_Co.,_MD_2016-09-20-12.19.jpg
Triepeolus_distinctus,_f,_anne_arundel_co,_md,_back_2016-08-31-16.39.jpg
Triepeolus_distinctus,_f,_anne_arundel_co,_md,_facewide_2016-08-31-16.50.jpg
Triepeolus_distinctus,_f,_anne_arundel_co,_md,_side_2016-08-31-16.58.jpg
Epeolus_howardi,_face,_Caroline_Co.,_MD_2016-09-20-12.02.jpg
Andrena_arabis,_m,_side,_beltsville,_md_2016-03-24-17.46.jpg
Andrena_arabis,_m,_back,_beltsville,_md_2016-03-24-17.08.jpg
Diadasia_rinconis,_back,_Pima_Co.,_AZ_2016-09-30-17.20.jpg
Andrena_arabis,_m,_face,_beltsville,_md_2016-03-24-17.25.jpg
Diadasia_rinconis,_rear,_Pima_Co.,_AZ_2016-09-30-17.39.jpg
Diadasia_rinconis,_face,_Pima_Co.,_AZ_2016-09-30-17.30.jpg
Triepeolus_sp101,_m,_face,_Cochise_Co.,_AZ_2016-09-30-18.01.jpg
Triepeolus_sp101,_m,_right,_Cochise_Co.,_AZ_2016-09-30-18.10.jpg
habropoda_excellens,_m,_ut,_face_2014-10-11-20.55.31_ZS_PMax.jpg
habropoda_excellens,_m,_ut,_back_2014-10-11-20.48.35_ZS_PMax.jpg
Coelioxys_cayennensis,_f,_argentina,_angle_2014-08-09-17.09.49_ZS_PMax.jpg
Triepeolus_monardae,_F,_Side,_GA,_Baker_County_2015-02-03-12.05.11_ZS_PMax.jpg
Coelioxys_cayennensis,_f,_argentina,_side_2014-08-09-17.36.07_ZS_PMax.jpg
Coelioxys_hunteri,_M,_abdomen_posterior,_MD,_Cecil_County_2013-08-08-14.05.37_ZS_PMax.jpg
Coelioxys_cayennensis,_f,_argentina,_face_2014-08-09-17.19.32_ZS_PMax.jpg
Jalisco_-_Feasting_Scene_-_Walters_482768.jpg
Zion_NP._Utah..jpg
Stelis_lateralis,_F,_face,_New_York,_Kings_County_2013-03-05-15.40.jpg
Stelis_lateralis,_F,_back,_New_York,_Kings_County_2013-03-05-15.27.jpg
Mystery_Nomada,_f,_nj,_side_2015-05-04-07.06.56_ZS_PMax.jpg
Big Bend National Park - Rio Grande riverbed with cracked mud.jpg
Mystery_Nomada,_f,_nj,_back_2015-05-04-07.01.08_ZS_PMax.jpg
Megachile_petulans,_M,_back,_Dorchester_Co,_MD_2015-08-27-14.36.02_ZS_PMax_UDR.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
Mystery_Nomada,_f,_nj,_face2_2015-05-04-06.56.27_ZS_PMax.jpg
Mystery_Nomada,_f,_nj,_face_2015-05-04-07.03.54_ZS_PMax.jpg
Stelis_nasuta,_M,_Face,_Greece,_Aegean_Islands,_Lesvos,_Mytilene_2015-02-24-13.36.57_ZS_PMax.jpg
Stelis_nasuta,_M,_Back,_Greece,_Aegean_Islands,_Lesvos,_Mytilene_2015-02-24-13.25.23_ZS_PMax.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
Ancyloscelis_apiformis,_m,_paraguay,_side_2014-08-08-10.09.11_ZS_PMax.jpg
Ancyloscelis_apiformis,_m,_paraguay,_angle_2014-08-08-09.40.23_ZS_PMax.jpg
Triepeolus_concavus,_M,_face,_Dorchester_Co,_MD_2015-09-01-12.11.29_ZS_PMax_UDR.jpg
Nomada_fragariae,_F,_Back,_MD,_PG_County_2015-09-01-15.52.19_ZS_PMax_UDR.jpg
Nomada_fragariae,_F,_Face,_MD,_PG_County_2015-09-01-14.40.10_ZS_PMax_UDR.jpg
Nomada_fragariae,_F,_Side,_MD,_PG_County_2015-09-01-15.06.11_ZS_PMax_UDR.jpg
Thyreus_white_species,_f,_back,_ethiopia_2014-07-16-10.24.14_ZS_PMax.jpg
Thyreus_white_species,_f,_head2,_ethiopia_2014-07-16-10.42.14_ZS_PMax.jpg
Thyreus_white_species,_f,_side,_ethiopia_2014-07-16-10.47.03_ZS_PMax.jpg
Nomada_maculata,_m,_back,_Charles_Co._Maryland_2016-06-27-16.44.jpg
Nomada_maculata,_m,_face,_Charles_Co._Maryland_2016-06-27-16.59.jpg
Lasioglossum_platyparium,_f,_back,_Charles_Co.,_MD_2016-03-15-22.17.jpg
Lasioglossum_platyparium,_f,_side,_Charles_Co.,_MD_2016-03-15-23.30.jpg
Lasioglossum_platyparium,_f,_face,_Charles_Co.,_MD_2016-03-15-22.52.jpg
Nomada_maculata,_m,_left_side,_Charles_Co._Maryland_2016-06-27-17.12.jpg
Megachile_pruina,_f,_charlotte_county,_fl,_face_2016-08-24-13.28.jpg
Megachile_pruina,_f,_charlotte_county,_fl,_side_2016-08-24-13.44.jpg
Triepeolus_lunatus,_f,_back,_Charleston_Co.,_SC_2016-09-08-18.14.jpg
Triepeolus_lunatus,_f,_right_side,_Charleston_Co.,_SC_2016-09-08-18.37.jpg
Triepeolus_lunatus,_f,_face,_Charleston_Co.,_SC_2016-09-08-18.23.jpg
Centris_smithii,_M,_face,_Puerto_Rico,_Boqueron_2014-09-23-14.38.40_ZS_PMax.jpg
Centris_smithii,_M,_side,_Puerto_Rico,_Boqueron_2014-09-23-14.53.45_ZS_PMax.jpg
Stelis_foederalis,_M,_Side,_Michigan,_Keweenaw_County_2014-11-04-16.53.jpg
Stelis_foederalis,_M,_face,_Michigan,_Keweenaw_County_2014-11-04-17.30.jpg
Stelis_foederalis,_F,_side,_Michigan,_Keweenaw_County_2014-11-04-16.41.jpg
Stelis_foederalis,_M,_back,_Michigan,_Keweenaw_County_2014-11-04-17.13.jpg
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