Commons:Open Access File of the Day

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Open Access File of the Day is an initiative of WikiProject Open Access. Since December 2011, it highlights files (or sets thereof) on Wikimedia Commons that are:

• in the Public Domain (by ways other than copyright expiration) or licensed under CC0, CC BY or CC BY-SA
• in Category:Open access (publishing) or any of its subcategories
• used on at least three wiki pages outside user namespace, either on Wikimedia projects or on sites using InstantCommons, from the day of nomination until the day of posting.

Nominate a file or see nominations

The featured files

2014

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  September 18: the beetle Neotermitosocius bolivianus
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  September 17: the Albania plant Micromeria cristata
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  September 16: body of the spider Sosippus floridanus
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  September 15: the lizard Eutropis cumingi
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  Sept 14: shell of the snail Achatina vassei
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  September 13: the eel Myrichthys ocellatus
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  September 12: the sea slug Melibe arianeae
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  September 11: the moth Dunama jessiebancroftae
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  September 10: Adélie penguin being weighed in a checkpoint
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  September 9: the bat Micronycteris microtis
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  September 8: the spider Caerostris darwini
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  September 7: love dart of the snail Xerarionta kellettii
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  September 6: a female orchid bee Eulaema mocsaryi
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  September 5: larva of the freshwater gar Lepisosteus oculatus
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  September 4: red tongue and cracked lips as symptoms of Kawasaki disease
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  September 3: the ground beetle Quammenis spectabilis
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  September 2: the fish Cephalopholis fulva
• September 1: a Spitzenkörper in a fungal hypha
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  August 31: Melipona interrupta manaosensis workers attacking a male.
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  August 30: Skull reconstruction of Kosmoceratops richardsoni.
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  August 29: The crustacean Tesnusocaris goldichi.
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  August 28: the spider Aptostichus stephencolberti
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  August 27: stages of biofilm development
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  August 26: the frog Anodonthyla pollicaris
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  August 25: the flowering plant Centaurea soskae
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  August 24: drawings of the spider Anisaedus levii in the family Palpimanidae
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  August 23: the fish Haplochromis argens
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  August 22: the extinct earwig Astreptolabis
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  August 21: the butterfly Raetzer's Ringlet
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  August 20: the plant bug Chinavia aseada
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  August 19: larva of firefly Alecton discoidalis eating the snail Oleacina
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  August 18: marbled water monitor
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  August 17: bone from the pes of the dinosaur talos
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  August 16: Oxelytrum biguttatum in the family Silphidae
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  August 15: the armored catfish Pareiorhina hyptiorhachis
• August 14: call of mudskipper Periophthalmodon septemradiatus
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  August 13: forest on the Phillipine island of Palawan
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  August 12: shell from a snail of family Hygromiidae
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  August 11: The spider Cabello eugeni.
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  August 10: The butterfly Argynnis elisa.
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  August 9: The skink Cryptoblepharus leschenault.
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  August 8: The frog Hoplobatrachus rugulosus.
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  August 7: The snake Coelognathus erythrurus.
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  August 6: Larva of the moth Amyna axis from the family Erebidae.
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  August 5: The insect Ripipteryx mopana of the superfamily Tridactyloidea.
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  August 4: The lizard Potamites strangulatus.
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  August 3: Genetic divergence of proboscidean species.
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  August 2: The freshwater snail Wicker ancylid.
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  August 1: The fish Squalius squalus.
• July 31: modeling of the respiratory system of insects
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  July 30: Transposition of the great vessels, a heart defect.
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  July 29: The preying mantis Perlamantis allibertii.
• July 28: Migration of Atlantic bluefin tuna.
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  July 27: The frog Anodonthyla rouxae from the family Microhylidae.
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  July 26: The moth Acontia cretata from the family Noctuidae.
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  July 25: The beetle Rhadine lindrothi.
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  July 24: The sand stargazeer Dactyloscopus tridigitatus.
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  July 23: A nymph of the leafhopper Pendarus magnus.
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  July 22: The spider Fecenia cylindrata.
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  July 21: Haplochromis goldschmidti.
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  July 20: The ant lion Brachynemurus sackeni.
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  July 19: The flowering plant Annickia affinis.
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  July 18: The spider Neoleptoneta anopica.
• July 17: Simultaneous video and EEG recordings of a pair of guitarists during improvisation.
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  July 16: Organ-specific patterns of endopolyploidy in the giant ant Dinoponera australis.
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  July 15: The jellyfish Haliclystus antarcticus.
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  July 14: the prehistoric extinct insect Termitaradus mitnicki
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  July 13: the monitor lizard Varanus bitatawa
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  July 12: region around Mount Binalud
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  July 11: larvae of the firefly Alecton discoidalis
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  July 10: motor neuron pathways
• July 9: the tardigrade Richtersius coronifer entering a state of cryptobiosis
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  July 8: shell of Huttonella bicolor
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  July 7: the parasitoid wasp Electrostephanus petiolatus Brues of family Stephanidae
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  July 6: the snake Montivipera wagneri
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  July 5: medical imaging showing Monckeberg's arteriosclerosis
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  July 4: Miopontonia yongei, a shrimp from family Palaemonidae
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  July 3: eye pattern of the insect Masteria petrunkevitchi
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  July 2: the prehistoric reptile Kaprosuchus
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  July 1: the spider Acanthoscurria gomesiana
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  June 31: histopathology slide of chordoma
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  June 30: activation of brain's reward system
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  June 29: the beetle Tecnophilus croceicollis
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  June 28: Laserpitium ochridanum, named after Laserwort from antiquity
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  June 27: The frog Platymantis pygmaeus.
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  June 26: the moth Exelastis caroli
• June 25: Spatial relationship between Müller cells and microglia
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  June 26: edmontosaur skulls
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  June 23: the blenny Haptoclinus dropi
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  June 22: a prehistoric snakefly, Styporaphidia hispanica
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  June 21: shell of the land snail Streptostele musaecola
• June 20: The fish Praealticus labrovittatus jumping.
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  June 19: the bee Epicharis umbraculata
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  June 18: the beetle Scybalocanthon korasakiae
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  June 17: the frog Fejervarya moodiei
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  June 16: male of moth Dunama jessiehillae
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  June 15: brain with DiGeorge syndrome
• June 14: ants, Camponotus leonardi
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  June 13: guard cells in plant stoma
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  June 12: Phylogeny of Mup coding
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  June 11: the sea snail Micromelo undata
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  June 10: The forget-me-not Alkanna noneiformis.
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  June 9: skeletal reconstruction of the dinosaur Sanjuansaurus gordilloi
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  June 8: the beetle Plectromerus roncaevi
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  June 7: an eye affected by Wolfram syndrome
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  June 6: shell of the freshwater snail Pomacea haustrum
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  June 5: The snake Cyclocorus lineatus.
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  June 4: the bellflower Edraianthus horvatii
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  June 3: the common bleak Alburnus alburnus
• June 2: skull of Lepidochelys kempii, a sea turtle
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  June 1: nurse cells develop the oocyte
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  May 31: Workers of the bee Melipona interrupta killing a queen.
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  May 30: A Manta alfredi while foraging.
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  May 29: The beetle Diacheila arctica.
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  May 28: the bee Bombus transversalis
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  May 27: Hand positions during wheel-throwing pottery.
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  May 26: eye pattern of the spider Acanthoctenus
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  May 25: The lizard Bronchocela marmorata.
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  May 24: Original position of fossil remains of the dinosaur Seitaad ruessi.
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  May 23: The freshwater snail Mexipyrgus churinceanus.
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  May 22: the grouper Epinephelus flavolimbatus
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  May 21: the moth Acontia ruffinellii
• May 20: Song of the sparrow Spizella passerina.
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  May 19: Dendrelaphis caudolineatus
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  May 18: appearance of posterior polymorphous corneal dystrophy
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  May 17: the extinct sweat bee Oligochlora
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  May 16: the plant Phoebe hunanensis
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  May 15: shell of Diplopoma species
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  May 14: the starfish Squamophis albozosteres
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  May 13: reproductive Structures of the Phytophthora, which are water molds
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  May 12: the skink Lamprolepis smaragdina
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  May 11: the beetle Giesbertiolus linnaei
• May 10: a visualization of enzyme catalysis
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  May 9: a tropical plant of genus Monodora
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  May 8: skull of Nigersaurus
• May 7: acoustic monitoring of an iceberg
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  May 6: the very long worm Lineus longissimus
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  May 5: The firefly Phosphaenus hemipterus.
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  May 4: the frog Dendrobates sylvaticus
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  May 3: Coryphopterus dicrus.
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  May 2: profile of patient with Creutzfeldt–Jakob disease
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  May 1: Amphitomeus attemsi.
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  April 30: Pelusios seychellensis.
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  April 29: Trachypachus gibbsii.
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  April 28: flower in Malpighiaceae family
• April 27: an automobile crash simulation
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  April 26: pupa of the fly Japanagromyza inferna
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  April 25: stain showing signs of Glomerulonephritis
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  April 24: the moth Acontia albifusa
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  April 23: the prehistoric termite Nanotermes isaacae
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  April 22: pancreatic stellate cell activation
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  April 21: the knotweed Persicaria attenuata
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  April 20: The snake Calamaria bitorques.
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  April 19: the threefin blenny Helcogramma trigloides
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  April 18: Trochulus villosus.
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  April 17: types of anglerfish
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  April 16: the fly Japanagromyza inferna
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  April 15: the dinosaur Anatosuchus minor
• April 14: a dog displaying the movement disorder ataxia
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  April 13: shell of snail Pleurocera prasinatum
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  April 12: The millipede Leptogoniulus sorornus.
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  April 11: the snail Helicina platychila
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  April 10: the lizard Varanus bitatawa
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  April 9: a beetle of family Lycidae
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  April 8: the site of the ancient Happisburgh footprints
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  April 7: nest of the wasp Synoeca septentrionalis
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  April 6: Solitary pulmonary nodule as seen by positron emission tomography
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  April 5: The squid Euprymna scolopes.
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  April 4: Platymantis cagayanensis.
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  April 3: the flowering plant Pauridiantha floribunda
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  April 2: young squid Idiosepius pygmaeus
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  April 1: illustration of the genome
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  March 31: Cupiennius salei.
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  March 30: the scorpionfly Caurinus tlagu
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  March 29: the tree Amphimas pterocarpoides
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  March 28: an arachnid of family Opiliones, Acuclavella quattuor
• March 27: a chalcone-related molecule induces cell death
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  March 26: the moth Dunama janecoxae
• March 25: thermographic camera monitoring a baby
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  March 24: the morning glory flower Calystegia felix
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  March 23: spider eyes of Masteria lewisi
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  March 22: The wasp Acrodactyla quadrisculpta.
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  March 21: the frog Limnonectes timorensis
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  March 20: Short Message Service (SMS) used to assist smoking cessation
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  March 19: a flowering plant in the mustard family, Hesperis theophrasti
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  March 18: the fish Alburnoides manyasensis
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  March 17: holotype of dinosaur Microraptor gui
• March 16: Demonstration of peripheral drift illusion
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  March 15: the brain tumor Gliomatosis cerebri
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  March 14: the snake Helicops angulatus
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  March 13: shell of the snail Leptacme cuongi
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  March 12: the legume Astragalus mayeri
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  March 11: the moth Hyposmochoma inversella
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  March 10: the chameleon Brookesia confidens
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  March 9: reactions of peroxynitrite leading to cell death
• March: 8: flight of wandering albatross
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  March 7: the beetle Elaphrus fuliginosus
• March 6: A male of the solitary bee Colletes cunicularius pseudocopulating on the flower labellum of the orchid Ophrys lupercalis.
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  March 5: bones of the dinosaur Utahceratops
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  March 4: leg of the spider trogloraptor
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  March 3: the eye disease retinitis pigmentosa
• March 2: song of the bird Psaltriparus minimus
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  March 1: Greenwayodendron suaveolens
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  February 28: the snail Helicinida rhodostoma
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  February 27: gall on the leaf of a plant
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  February 26: microscopic view of osteochondrosis in the joint of a sow
• February 25: electroencephalography while playing guitar
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  February 24: skeleton and range map of the dinosaur Seitaad
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  February 23: the beetle Lyctoxylon dentatum
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  February 22: Limnonectes macrocephalus
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  February 21: the butterfly Phengaris arion
• February 20: Photoactivated localization microscopy of a neuron
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  February 19: thistle-like plant Centaurea rupestris
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  February 18: the spider Pachistopelma rufonigrum
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  February 17: symptoms of gas gangrene
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  February 16: the gecko Gekko kikuchii
• February 15: song of the bird Grallaria rufula
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  February 14: love dart of the snail Cepaea nemoralis
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  February 13: shell of the snail Leptoxis compacta
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  February 12: Darwinilus sedarisi.
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  February 11: the aquatic plant Nymphoides aurantiaca
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  February 10: microscopic marine animal Spinoloricus nov. sp.
• February 9: NMR of larva of the fly Eurosta solidaginis
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  February 8: Platymantis taylori
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  February 7: bones of the mosasaur Platecarpus
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  February 6: Pelusios seychellensis
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  February 5: the aquatic plant Nymphoides hydrophylla
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  February 4: Dendrelaphis luzonensis, a snake from Colubridae family
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  February 3: the stalked jellyfish Haliclystus antarcticus
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  February 2: Meesmann corneal dystrophy
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  February 1: the moth Antispila voraginella
• January 31: Slow-wave sleep and rapid eye movement sleep in ostriches.
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  January 30: a nudibranch slug, Armina neapolitana
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  January 29: Festuca galicicae.
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  January 28: orangutan in Sabangau National Park
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  January 27: A Manta alfredi at a cleaning station.
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  January 26: A Paludiscala caramba shell.
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  January 25: the sole specimen of the extinct snakefly Cantabroraphidia marcanoi
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  January 24: A Pterostichus punctatissimus beetle.
• January 23: 2002-2008 incidence rates of dengue fever in Cambodia
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  January 22: the skink Eutropis multifasciata
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  January 21: the flower Centaurea galicicae
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  January 20: Agujaceratops skeleton
• January 19: the fish Alticus arnoldorum climbing a wall
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  January 18: The beetle Psydrus piceus.
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  January 17: the mantis Apteromantis aptera
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  January 16: fat embolism
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  January 15: A female Eulaema meriana bee attending to a Bertholletia excelsa flower.
• January 14: giant water bug Lethocerus attacks Stone moroko fish
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  January 13: Fossil remains of Crocodylus anthropophagus.
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  January 12: the mushroom Cortinarius bovarius in class Agaricales
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  January 11: Sphodromantis viridis.
• January 10: the mosquito Culex quinquefasciatus on a Lantana sp. flower
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  January 9: the lizard Anolis podocarpus
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  January 8: neuroimaging of a penetrating head injury
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  January 7: Microscopic slide, made in 1953, of the holotype of the flatworm Lethacotyle fijiensis
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  January 6: chalcid wasp of family Mymaridae
• January 5: Trills by the bird Malurus coronatus.
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  January 4: the weed Helichrysum luteoalbum
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  January 3: The moth Synynthedon myopaeformis.
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  January 2: shell of the freshwater snail Leptoxis ampla
• January 1: 3D animation of suction feeding in the fossil turtle Ocepechelon bouyai.

2013

See Commons:Open Access File of the Day/2013.

2012

See Commons:Open Access File of the Day/2012.

2011

See Commons:Open Access File of the Day/2011.

Statistics

See here for global usage for all files on this page combined, and here for similar stats about all files in the Commons category Open access (publishing). See also access stats for this page over the last 90 days and for all images on this page in December 2012.