Click Here for More Images from iStock- 15% off with coupon 15FREEIMAGES 
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.
Diatoms, algae under microscopic view, phytoplankton, fossils, silica, golden yellow algae
amazing inhabitants of the microworld under a microscope
plant Zea Stem C.S. under light mircoscope with white background
Frontonia sp. is a genus of free-living unicellular ciliate protists under the microscope.
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.
A large group of tadpoles (Gavialis gangeticus) clustered in lake water
Natural agate surfaces, suitable for backgrounds and wallpapers.
Photomicrograph of Paramecium caudatum. Consists of only one cell. Live specimen. Wet mount, 40X objective, transmitted brightfield illumination.
Freshwater aquatic zooplankton and algae under microscope view
Spore bags of helminthosporium contain 8 cells. This disease causes helminthosporiosis of wheat. Soon very small and quite harmful.
Trematode parasite under a microscope
Amoeba proteus this small protozoan uses tentacular protuberances called pseudopodia to move and phagocytose smaller unicellular organisms.
Taenia Pisiformis Section under light microscope with white background
Planarian parasite (flatworm) under microscope view.
Abstract Crystal background marble shot, nature pattern.
Photomicrograph of one celled amoeba. Live specimen. Wet mount, 40X objective, transmitted brightfield illumination.
Lepocinclis acus or euglena acus, a single cell flagellate eukaryote under the microscope
Artemia Salina - Brine Shrimp are food of Seahorses and many other Saltwater Animals
the tail of a redfish
The Microscopic World. Tap water.
Photomicrograph of an ascus with eight ascospores. This preparation was stained with acid fuchsin, which stains the cytoplasm of the ascospores a deep red color. The fungus is an ascomycete, Diplodia corticola, that infects the wood of oak trees, and is one of the causes of oak decline disease.The picture was taken with a microscope equipped with differential interference contrast optical system that gives a three dimensional effect.
Study of Protozoa, Algae and bacteria under the microscope for education.
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.
Microscopic image of the operculum of a shrimp with possible disease. Research. Study. Laboratory. Aquaculture. Findings of disease in shrimp.
Amphora sp. algae under microscopic view, Diatoms, phytoplankton, fossils, silica, golden yellow algae
A detailed image of a seaweed plant with branching green and brown tendrils, isolated on a white background.
Cheyletiella blakei Mite - Small Cat pest view under a microscope
Free Images: "bestof:FMIB 52553 Vellela timbosa.jpeg Vellela timbosa Subject Hydroida Tag Invertebrates 1903 Cite book Sea-Beach at Ebb-Tide Arnold Augusta Foote New York Century Co"
FMIB_43267_Moose.jpeg
Gustave_Wappers_-_Épisode_des_Journées_de_septembre_1830_sur_la_place_de_l'Hôtel_de_Ville_de_Bruxelles.jpg
Charles_Kingley_-_1899_Westward_Ho!_frontispiece.jpg
Charles_Kingley_-_1899_Westward_Ho!_cover_2.jpg
Sharecroppers,_Pulaski_Co.,_Ark._(3109755193).jpg
Saturday_afternoon,_Lexington,_Holmes_Co.,_Mississippi,_Oct...._(3110572864).jpg
Johannes_Vermeer_-_Woman_Holding_a_Balance_-_Google_Art_Project.jpg
Walt_Whitman_edit_2.jpg
The_Dance_Lesson_by_Edgar_Degas.jpg
Chen_Rong_-_Nine_Dragons.jpg
Andrena_arabis,_M,_Face,_NY,_Orange_Co_2013-06-07-17.49.58_ZS_PMax.jpg
William-Adolphe_Bouguereau_(1825-1905)_-_Pieta_(1876).jpg
1880_Pierre_Auguste_Cot_-_The_Storm.jpg
Lady_Elizabeth_Hamilton_(1753–1797),_Countess_of_Derby.jpg
HoratioNelson1.jpg
Raphael_-_The_Alba_Madonna_-_Google_Art_Project.jpg
Étienne_Carjat,_Portrait_of_Charles_Baudelaire,_circa_1862.jpg
Gift_for_the_grangers_ppmsca02956u.jpg
N.Gogol by F.Moller (1840, Tretyakov gallery).jpg
Map_of_Lewis_and_Clark's_Track,_Across_the_Western_Portion_of_North_America,_published_1814.jpg
Stroop Report - Warsaw Ghetto Uprising 06b.jpg
Fra_Angelico,_Fra_Filippo_Lippi,_The_Adoration_of_the_Magi.jpg
Stroop Report - Warsaw Ghetto Uprising 06.jpg
FMIB_38488_Coral_Reef_of_the_Bahamas.jpeg
FMIB_51605_Coral_Reef_at_Apia.jpeg
Frans_Hals_-_Portrait_Bust_of_a_Man_-_Walters_37345.jpg
Silva_Tipple_New_Lake_(b._1898).jpg
Bartolomeo_Cavarozzi_-_St_Ursula_and_Her_Companions_with_Pope_Ciriacus_and_St_Catherine_of_Alexandria_-_WGA04608.jpg
Heads_of_Angels_-_Miss_Frances_Gordon)_by_Sir_Joshua_Reynolds,_PRA.jpg
Immaculate_Conception_with_Saints_Dominic_and_Francis_of_Paola.jpg
Catherine_MacKenzie_(Bierstadt)_(ca._1894-1949).jpg
Granville_Leveson-Gower´s_children.jpg
Vincent_van_Gogh_-_The_Old_Tower_at_Dusk_-_F40_JH507.jpg
Giuseppe_Cesari_called_Cavalier_D'Arpino,_David_with_the_Head_of_Goliath,_1598,_oil_on_canvas.jpg
Jean_Dougherty_Strother_(b._1921)_(center)._Also_pictured:_E.J._Ducayet_(right)_and_R.C._Buyers_(left).jpg
Wtewael,_Joachim,_Judith_and_the_Head_of_Holofernes,_ca._1595-1600.jpg
Pittsburgh newspaper consolidation timeline.svg
FMIB_42819_Oyster_Farm_at_Kaidaichi.jpeg
FMIB_34492_Cannery,_Hoonah,_Alaska.jpeg
FMIB_42802_View_of_a_Turtle_Farm,_Fukagawa,_Tokyo,_Japan.jpeg
FMIB_49016_Kootenay_Indian_family_at_Moyle_Lake.jpeg
FMIB_33626_Lake_Pepin.jpeg
FMIB_36296_Pond_Fish-Cultural_Station,_Mammoth_Spring,_Ark_(Bureau_of_Fisheries).jpeg
FMIB_47518_Both_trout_ans_bass_are_cultivated_at_many_of_the_stations_This_view_of_the_station_at_Manchester,_Iowa,_shows_stock_ponds_in.jpeg
Kathleen_Yardley_Lonsdale_(1903-1971).jpg
Giovanni_Baglione_Saint_John_the_Baptist.jpg
Population of Briarcliff Manor.svg
Van_Gogh_-_Bildnis_Josepf_Roulin1.jpeg
William-Adolphe_Bouguereau_-_Au_bord_de_la_mer_(1903).jpg
Mary_Greig.jpg
Helen_Marie_Gunz.jpg
left_to_right:_R._Adrienne_Weill_(b._1903)_and_John_Phillip_Nielsen_(b._1911).jpg
Reynolds_-_Lavinia,_Countess_Spencer.jpg
Titian_-_Christ_Shown_to_the_People_(Ecce_Homo).jpg
Titian_-_Mocking_of_Christ_-_WGA22840.jpg
Vincent_van_Gogh_-_Head_of_an_Old_Peasant_Woman_with_White_Cap_-_F146_JH551.jpg
(left_to_right):_Kirsopp_Lake_(1872-1946),_Silva_Tipple_New_Lake_(b._1898),_and_Robert_Pierce_Casey_(1897-1959).jpg
Margaret_Morris_Hoskins_(1886-1955).jpg
Barbara_McClintock_(1902-1992).jpg
Goshichi no kiri.svg
Vincent_van_Gogh_-_Stilleven_met_een_boeket_van_Madeliefjes.jpg
George_Bellows_-_Little_Girl_in_White_(Queenie_Burnett)_(1907).jpg
MrsJohnTaylor_ByThomasGainsborough_circa1778_NGA_Washington.png
'Madame_de_La_Porte'_oil_on_canvas_painting_by_Jean-Marc_Nattier,_1754,_Art_Gallery_of_New_South_Wales.jpg
Jean-Marc_Nattier_-_Madame_de_La_Porte_-_Google_Art_Project.jpg
Queen_Charlotte_by_Sir_Thomas_Lawrence_1789.jpg
A_Cherub_Head_in_Different_Views_(Miss_Frances_Gordon,_by_Sir_Joshua_Reynolds.jpg
Édouard_Adam_-_Kaleda_off_Le_Havre.jpg
Vivien_Kellems_(1896-1975).jpg
Eleanor_Holgate_Lattimore_(1895-1970)_and_her_husband_Owen_Lattimore_(1900-1989).jpg
François Bonvin - Drawing Water - Walters 37199.jpg
Jean-Paul Flandrin - Odalisque with Slave - Walters 37887.jpg
Wappers_belgian_revolution.jpg
Gilbert_Stuart_Williamstown_Portrait_of_George_Washington.jpg
Angelica_Kauffmann,_Portrait_of_Lady_Georgiana,_Lady_Henrietta_Frances_and_George_John_Spencer,_Viscount_Althorp_(1774).jpg
Van_Gogh_-_Der_alte_Friedhofsturm_in_Nuenen2.jpeg
Rembrandt_-_Self-Portrait_-_WGA19214.jpg
Bonheur,_Rosa,_Study_of_a_Dog,_possibly_1860s.jpg
(left_to_right):_Laveta_Audrey_Johnson,_Ursula_Vivian_Victor,_Anne_Wagman,_Caroline_Littlejohn,_Roger_Hugh_Nelson,_Richard_C._Hitchcock,_John_David_Kaufman.jpg
Jacob_Glassman,_his_wife_(at_left)_and_Mrs._Lawrence_M._Solomon_(at_right).jpg
Paul_E._Teschan_(1923-_),_Watson_Davis_(1896-1967),_and_Marina_Prajmovsky_(1924-1974),_1942.jpg
Edgar Degas - Portrait of Estelle Balfour - Walters 37179.jpg
Granville_Leveson-Gower,_1._Earl_Granville_with_her_wife_and_their_children.jpg
Pierre_Puvis_de_Chavannes_-_Hope_-_Walters_37156.jpg
Edgar_Degas_-_Portrait_of_Estelle_Balfour_-_Walters_37179_(2).jpg
Paul_Gauguin_-_Arlésiennes_(Mistral)_-_Google_Art_Project.jpg
Wappers_belgian_revolution_DYK.jpg
Wappers - Episodes from September Days 1830 on the Place de l’Hôtel de Ville in Brussels.JPG
George_Romney,_Portrait_of_Mrs_James_Fletcher_(née_Fell)_(c._1765).jpg
Portrait_of_Catherine_Gray,_Lady_Manners,_by_Thomas_Lawrence.jpg
Paul_Gauguin,_ca.1891-1893,_Tehura_(Teha'amana),_polychromed_pua_wood,_H._22.2_cm._Realized_during_Gauguin's_first_voyage_to_Tahiti._Musée_d'Orsay,_Paris.jpg
Jean-Auguste-Dominique_Ingres_-_The_Betrothal_of_Raphael_and_the_Niece_of_Cardinal_Bibbiena_-_Walters_3713.jpg
Bodil_Mimi_Krogh_Schmidt-Nielsen_(b._1918)_with_her_children.jpg
left_to_right:_Clarence_Cook_Little_(1888-1971);_Edgar_Allen_(1892-1943);_Howard_Bancroft_Andervont_(1898-1981);_Madge_Thurlow_Macklin_(1893-1962);_Leiv_Kreyberg_(b._1896);_Gioacchino_Failla_(1891-1961);_and_Henri_Coutard_(1876-1950).jpg
Paul_Gauguin_-_The_Ancestors_of_Tehamana_OR_Tehamana_Has_Many_Parents_(Merahi_metua_no_Tehamana)_-_Google_Art_Project.jpg
P450cycle.svg
Gerrit_van_Honthorst_-_Artemisia_-_Google_Art_Project.jpg
Van_Ceulen_I,_Cornelis_Jonson,_Portrait_of_a_Woman,_1655-56.jpg
David and studio, Jacques-Louis, The Death of Socrates, after 1787.jpg
Albrecht_Dürer_-_Lot_and_His_Daughters_(reverse)_-_Google_Art_Project.jpg
Terms of Use   Search of the Day