Markus Varesvuo / Lesser Whitethroat (Sylvia curruca) with yellow pollen stain on head from willow catkins. Porvoo, Söderskär, Finland. May
01130739
Luiz Claudio Marigo / Tannins stain water of River Negro brown, Amazonia, Brazil
01579474
Jeff Foott / Cross section through trunk of tree infected with Mountain pine beetle larvae (Dendroctonus ponderosae). Note dark stain from fungus transported by the beetle. Grand Teton National Park, Wyoming, USA...
01579473
Jeff Foott / Cross section through trunk of tree infected with Mountain pine beetle larvae (Dendroctonus ponderosae). Note dark stain from fungus transported by the beetle. Grand Teton National Park, Wyoming, USA...
01564186
Nick Upton / Green elfcup / Green stain fungus (Chlorociboria aeruginosa/aeruginascens) growing on a rotting log, GWT Lower Woods reserve, Gloucestershire, UK, November.
00559742
Chien Lee / Bird-dropping Crab Spider (Phrynarachne decipiens) on silken pad it has made to resemble the stain of bird excrement to attract flies, Kubah National Park, Sarawak, Borneo, Malaysia
01503954
Nick Upton / Green elfcup / green stain fungus (Chlorociboria aeruginosa/aeruginascens) on rotting log, GWT Lower Woods reserve, Gloucestershire, UK, October.
01503953
Nick Upton / Green elfcup / green stain fungus (Chlorociboria aeruginosa/aeruginascens) on rotting log, GWT Lower Woods reserve, Gloucestershire, UK, October.
01483483
Paul Hobson / Small tortoiseshell butterfly (Aglais urticae) on stain glass window of church, Sheffield, England, UK. Commended in the Other Animals Category of the GDT competition 2014.
01420182
Pascal Tordeux / Cut tree trunk showing shrapnel from World War I in the wood which has caused the sap to diffuse tannin and stain the wood black, Picardy, France, October
01362321
John Abbott / Stain from Bed bugs (Cimex lectularius) in human dwelling, Austin, Texas, USA
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John Abbott / Stain from Bed bugs (Cimex lectularius) in human dwelling, Austin, Texas, USA
01323068
Kevin Schafer / Silky Sifaka (Propithecus candidus) portrait of male with chest-marking stain, climbing vine, Marojejy National Park, Madagascar, November, Endangered
01323069
Kevin Schafer / Silky Sifaka (Propithecus candidus) portrait of male with chest-marking stain (not shown) climbing vine, Marojejy National Park, Madagascar, November, Endangered
01204921
Igor Shpilenok / Stain glass wall and Geyser River in the Valley of the Geysers, Kronotsky Zapovednik, Kamchatka, Far East Russia, May 2006. Brown bears like to gather in the warm valley in spring to feed on fresh gra...
01204920
Igor Shpilenok / Stain glass wall and Geyser River in the Valley of the Geysers, Kronotsky Zapovednik, Kamchatka, Far East Russia, May 2006.
01680501
Nigel Cattlin / Purple seed stain (Cercospora kikuchii) characteristic staining symptom caused by the disease to soybean seeds
01659139
Nigel Cattlin / Barley (Hordeum vulgare) grain, cross sections of seeds treated with tetrazolium salt which stains viable living tissue red, a test for germination.
01659138
Nigel Cattlin / Barley (Hordeum vulgare) germination test, seed treated with tetrazolium salt. Grains stained red are viable, colourless grains are not viable.