![](../../pictures/archives/compress/2014/1384/jpeg/12t.jpg) Group of birdwatchers from QNHG (Qatar Natural History Group) near Abu Nakhla wastewater treatment ponds. Doha, Qatar, March 29, 2014
![](../../pictures/archives/compress/2014/1384/jpeg/13t.jpg) Watching birds with QNHG (Qatar Natural History Group) near Abu Nakhla wastewater treatment ponds. Doha, Qatar, March 29, 2014
![](../../pictures/archives/compress/2014/1384/jpeg/14t.jpg) Group of birdwatchers from QNHG (Qatar Natural History Group) on a service road near Abu Nakhla wastewater treatment ponds. Doha, Qatar, March 29, 2014
![](../../pictures/archives/compress/2014/1384/jpeg/10t.jpg) Evans bluetail damselfly (Ischnura evansii) near Abu Nakhla wastewater treatment ponds. Doha, Qatar, March 29, 2014
![](../../pictures/archives/compress/2014/1384/jpeg/08t.jpg) Bright mature male broad scarlet dragonfly (Crocothemis erythraea) near Abu Nakhla wastewater treatment ponds. Doha, Qatar, March 29, 2014
![](../../pictures/archives/compress/2014/1384/jpeg/07t.jpg) Broad scarlet dragonfly (Crocothemis erythraea) in obelisk position near a service road of Abu Nakhla wastewater treatment ponds. Doha, Qatar, March 29, 2014
![](../../pictures/archives/compress/2014/1384/jpeg/09t.jpg) Female broad scarlet dragonfly (Crocothemis erythraea) holding its abdomen up (obelisk position) near Abu Nakhla wastewater treatment ponds. Doha, Qatar, March 29, 2014
![](../../pictures/archives/compress/2015/1551/jpeg/15t.jpg) Old plywood mosque near Abu Nakhla wastewater treatment ponds. Doha, Qatar, February 27, 2015
![](../../pictures/archives/compress/2015/1551/jpeg/14t.jpg) Plywood mosque near Abu Nakhla wastewater treatment ponds. Doha, Qatar, February 27, 2015
![](../../pictures/archives/compress/2014/1385/jpeg/16t.jpg) Group of birdwatchers from QNHG (Qatar Natural History Group) looking for a white owl near Green Circles (center-pivot irrigation) in Irkhaya Farms. South-western Qatar, March 29, 2014
![](../../pictures/archives/compress/2015/1551/jpeg/21t.jpg) Beaked tasselweed (widgeongrass, Ruppia maritima) taken from Abu Nakhla wastewater treatment ponds. Doha, Qatar, February 27, 2015
![](../../pictures/archives/compress/2015/1551/jpeg/28t.jpg) Clump of beaked tasselweed (widgeongrass, Ruppia maritima) taken from Abu Nakhla wastewater treatment ponds. Doha, Qatar, February 27, 2015
![](../../pictures/archives/compress/2015/1551/jpeg/23t.jpg) Roots of beaked tasselweed (widgeongrass, Ruppia maritima) taken from Abu Nakhla wastewater treatment ponds. Doha, Qatar, February 27, 2015
![](../../pictures/archives/compress/2015/1551/jpeg/17t.jpg) Brittle naiad aquatic plant (Najas marina) submerged in Abu Nakhla wastewater treatment ponds. Doha, Qatar, February 27, 2015
![](../../pictures/archives/compress/2015/1551/jpeg/25t.jpg) Brittle naiad aquatic plant (Najas marina) with roots taken from Abu Nakhla wastewater treatment ponds. Doha, Qatar, February 27, 2015
![](../../pictures/archives/compress/2015/1551/jpeg/18t.jpg) Brittle naiad aquatic plant (Najas marina) extracted from Abu Nakhla wastewater treatment ponds. Doha, Qatar, February 27, 2015
![](../../pictures/archives/compress/2015/1551/jpeg/22t.jpg) Narrow leaves of beaked tasselweed (widgeongrass, Ruppia maritima) taken from Abu Nakhla wastewater treatment ponds. Doha, Qatar, February 27, 2015
![](../../pictures/archives/compress/2015/1551/jpeg/20t.jpg) Beaked tasselweed (widgeongrass, Ruppia maritima) with roots extracted from Abu Nakhla wastewater treatment ponds. Doha, Qatar, February 27, 2015
![](../../pictures/archives/compress/2015/1551/jpeg/26t.jpg) Brittle naiad aquatic plant (Najas marina) on dark background taken from Abu Nakhla wastewater treatment ponds. Doha, Qatar, February 27, 2015
![](../../pictures/archives/compress/2015/1551/jpeg/29t.jpg) Spiny leaves of brittle naiad aquatic plant (Najas marina) from Abu Nakhla wastewater treatment ponds. Doha, Qatar, February 27, 2015
![](../../pictures/archives/compress/2015/1551/jpeg/16t.jpg) Mihrab (semicircular prayer niche) in qibla wall inside old plywood mosque near Abu Nakhla wastewater treatment ponds. Doha, Qatar, February 27, 2015
![](../../pictures/archives/compress/2015/1551/jpeg/19t.jpg) Toothed leaves of brittle naiad aquatic plant (Najas marina) extracted from Abu Nakhla wastewater treatment ponds. Doha, Qatar, February 27, 2015
![](../../pictures/archives/compress/2015/1551/jpeg/24t.jpg) Toothed leaves of brittle naiad aquatic plant (Najas marina) with serrate edges taken from Abu Nakhla wastewater treatment ponds. Doha, Qatar, February 27, 2015
![](../../pictures/archives/compress/2015/1551/jpeg/27t.jpg) Toothed leaves of brittle naiad aquatic plant (Najas marina) on dark background taken from Abu Nakhla wastewater treatment ponds. Doha, Qatar, February 27, 2015
![](../../pictures/archives/compress/2012/1024/jpeg/14t.jpg) Jack Russell Terrier dog of Qatar Natural History Group (QNHG) in sands of Harrarah, 40 miles south-west from Doha. Qatar, March 2, 2012
![](../../pictures/archives/compress/2016/1774/jpeg/03t.jpg) Group of bird watchers from QNHG (Qatar Natural History Group) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. South-western Qatar, March 5, 2016
![](../../pictures/archives/compress/2016/1774/jpeg/31t.jpg) Group of bird watchers from QNHG (Qatar Natural History Group) near a pond outside of Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. South-western Qatar, March 5, 2016
![](../../pictures/archives/compress/2012/1035/jpeg/06t.jpg) Qatar Natural History Group (QNHG) at Jazirat Umm Tays, barrier island at northern tip of Qatar, east from Ruwais, March 24, 2012
![](../../pictures/archives/compress/2012/1035/jpeg/12t.jpg) Qatar Natural History Group (QNHG) on dunes of Jazirat Umm Tays, barrier island at northern tip of Qatar, east from Ruwais, March 24, 2012
![](../../pictures/archives/compress/2012/1035/jpeg/26t.jpg) Qatar Natural History Group (QNHG) near a fishing shack in Jazirat Umm Tays, barrier island at northern tip of Qatar, east from Ruwais, March 24, 2012
![](../../pictures/archives/compress/2014/1335/jpeg/15t.jpg) Members of the Qatar Natural History Group (QNHG) exploring glittering gypsum pavement (selenite) during fossil trip in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1336/jpeg/30t.jpg) Qatar Natural History Group (QNHG) looking at fossilized dugong bones embedded in desert floor under the guidance of a geologist Jacques LeBlanc in area of coastal sabkha in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1336/jpeg/29t.jpg) Qatar Natural History Group (QNHG) exploring fossilized dugong bones embedded in desert floor under the guidance of a geologist Jacques LeBlanc in area of coastal sabkha in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1334/jpeg/21t.jpg) Geologist Jacques LeBlanc at the foot of ancient lithified dune of red sand guiding a fossil tour for Qatar Natural History Group (QNHG) in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1335/jpeg/24t.jpg) Members of the Qatar Natural History Group (QNHG) exploring fossilised intertidal stromatolites (microbial mats, laminated sediments) during fossil trip in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1336/jpeg/28t.jpg) Members of the Qatar Natural History Group (QNHG) exploring fossilized dugong bones embedded in desert floor under the guidance of a geologist Jacques LeBlanc in area of coastal sabkha in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1335/jpeg/18t.jpg) Members of the Qatar Natural History Group (QNHG) under the guidance of a geologist Jacques LeBlanc exploring fossilised stromatolites (microbial mats) during fossil trip in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2016/1774/jpeg/20t.jpg) People from QNHG (Qatar Natural History Group) taking pictures of a lizard on periphery of Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. South-western Qatar, March 5, 2016
![](../../pictures/archives/compress/2014/1335/jpeg/21t.jpg) Members of the Qatar Natural History Group (QNHG) exploring area of gypsum crystal pavement (selenite) during fossil trip in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2015/1572/jpeg/10t.jpg) QNHG (Qatar Natural History Group) watching birds on a small peninsula. Ruwais, Northern Qatar, April 3, 2015
![](../../pictures/archives/compress/2013/1191/jpeg/11t.jpg) Qatar Natural History Group (QNHG) wading near Al Mafjar village, northern area near Ruwais. Qatar, April 12, 2013
![](../../pictures/archives/compress/2015/1683/jpeg/16t.jpg) QNHG (Qatar Natural History Group) gathering in a tea hall in Trainah agricultural settlement. Southern Qatar, November 6, 2015
![](../../pictures/archives/compress/2013/1202/jpeg/16t.jpg) Qatar Natural History Group (QNHG) touring excavations at al-Ruwaydah, a late Islamic site near Ruwais in northern Qatar, May 3, 2013
![](../../pictures/archives/compress/2015/1572/jpeg/08t.jpg) QNHG (Qatar Natural History Group) heading to watch birds on a small peninsula. Ruwais, Northern Qatar, April 3, 2015
![](../../pictures/archives/compress/2015/1572/jpeg/09t.jpg) QNHG (Qatar Natural History Group) exploring a bone on a beach of a small peninsula. Ruwais, Northern Qatar, April 3, 2015
![](../../pictures/archives/compress/2015/1608/jpeg/17t.jpg) Ethiopian hedgehogs rolled into prickly balls in Rawdat Al Faras Research Station (RAFRS, or Qatar University Farm) near Al Zubara Road during a tour with Qatar Natural History Group (QNHG). Qatar, May 29, 2015
![](../../pictures/archives/compress/2015/1608/jpeg/16t.jpg) Ethiopian hedgehog (Paraechinus aethiopicus) rolled into a ball in Rawdat Al Faras Research Station (RAFRS, or Qatar University Farm) near Al Zubara Road during a tour with Qatar Natural History Group (QNHG). Qatar, May 29, 2015
![](../../pictures/archives/compress/2015/1608/jpeg/12t.jpg) Ethiopian hedgehog (Paraechinus aethiopicus) on a gardening glove at a short presentation of Qatar University for Qatar Natural History Group (QNHG) at the entrance of Rawdat Al Faras Research Station (RAFRS) near Al Zubara Road. Qatar, May 29, 2015
![](../../pictures/archives/compress/2015/1683/jpeg/11t.jpg) QNHG (Qatar Natural History Group) exploring fossils of the Middle Eocene Dammam Formation in a site on flanks of Rawdat Al Heshaimiya(?) depression south from Trainah. Southern Qatar, November 6, 2015
![](../../pictures/archives/compress/2015/1683/jpeg/12t.jpg) QNHG (Qatar Natural History Group) looking for fossils in Midra Shale of the Middle Eocene Dammam Formation in a site on flanks of Rawdat Al Heshaimiya(?) depression south from Trainah. Southern Qatar, November 6, 2015
![](../../pictures/archives/compress/2015/1683/jpeg/10t.jpg) QNHG (Qatar Natural History Group) exploring compact claystone (Midra Shale) of the Middle Eocene Dammam Formation at fossil site on flanks of Rawdat Al Heshaimiya(?) depression south from Trainah. Southern Qatar, November 6, 2015
![](../../pictures/archives/compress/2015/1683/jpeg/09t.jpg) QNHG (Qatar Natural History Group) exploring fossils in limestone layer (Dukhan Limestone Member) of Dammam Formation in Jaow Al Hamar depression south from Trainah. Southern Qatar, November 6, 2015
![](../../pictures/archives/compress/2010/840/jpeg/12t.jpg) Qatar Natural History Group in desert. Harrarah, 40 miles south-west from Doha. Qatar, March 5, 2010
![](../../pictures/archives/compress/2010/840/jpeg/16t.jpg) Qatar Natural History Group walking in desert. Harrarah, 40 miles south-west from Doha. Qatar, March 5, 2010
![](../../pictures/archives/compress/2010/840/jpeg/05t.jpg) Qatar Natural History Group outing on limestone hills of Harrarah, 40 miles south-west from Doha. Qatar, March 5, 2010
![](../../pictures/archives/compress/2010/840/jpeg/14t.jpg) Qatar Natural History Group discovered some small critter in desert. Harrarah, 40 miles south-west from Doha. Qatar, March 5, 2010
![](../../pictures/archives/compress/2010/824/jpeg/21t.jpg) Qatar Natural History Group measuring depth of a pond between Al Wakra and Mesaieed, north from Doha. Qatar, January 29, 2010
![](../../pictures/archives/compress/2010/824/jpeg/25t.jpg) Qatar Natural History Group wading at low tide in Arabian (Persian) Gulf near Mesaieed, north from Doha. Qatar, January 29, 2010
![](../../pictures/archives/compress/2011/931/jpeg/04t.jpg) Qatar Natural History Group in Ras Abrouq peninsula in west central coastal area, north from Zekreet. Qatar, April 8, 2011
![](../../pictures/archives/compress/2010/827/jpeg/22t.jpg) Dr. Petersen guiding a tour of a fort at Qal at Ruwayda archeological Site on northwest coast for Qatar Natural History Group. Qatar, February 6, 2010
![](../../pictures/archives/compress/2010/827/jpeg/24t.jpg) Dr. Petersen in an excavated mound guiding a tour of Qal at Ruwayda archeological Site on northwest coast for Qatar Natural History Group. Qatar, February 6, 2010
![](../../pictures/archives/compress/2015/1581/jpeg/04t.jpg) Dried caked mud of Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
![](../../pictures/archives/compress/2015/1581/jpeg/00t.jpg) Old plywood mosque near Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
![](../../pictures/archives/compress/2015/1581/jpeg/08t.jpg) Dried caked mud on the bottom of Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
![](../../pictures/archives/compress/2015/1581/jpeg/03t.jpg) Shrinking water reservoir of Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
![](../../pictures/archives/compress/2015/1581/jpeg/10t.jpg) Dried Abu Nakhla jail ponds (sewage lagoons), with caked mud at the bottom. Qatar, April 18, 2015
![](../../pictures/archives/compress/2015/1581/jpeg/07t.jpg) Texture of dried caked mud of Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
![](../../pictures/archives/compress/2015/1581/jpeg/12t.jpg) Widgeon Grass (Ruppia maritima) in Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
![](../../pictures/archives/compress/2015/1581/jpeg/09t.jpg) Dried caked mud covering the bottom of Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
![](../../pictures/archives/compress/2015/1581/jpeg/11t.jpg) Widgeon Grass (Ruppia maritima) with flowers in Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
![](../../pictures/archives/compress/2015/1581/jpeg/01t.jpg) Blue dome and traces of a chandelier in a plywood mosque near Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
![](../../pictures/archives/compress/2015/1581/jpeg/16t.jpg) Grass Sporobolus spicatus growing on dried bottom of Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
![](../../pictures/archives/compress/2015/1581/jpeg/17t.jpg) Aquatic plant Widgeon Grass (Ruppia maritima) taken from Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
![](../../pictures/archives/compress/2015/1581/jpeg/13t.jpg) Dying aquatic plant of brittle naiad (Najas marina) in Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
![](../../pictures/archives/compress/2015/1581/jpeg/14t.jpg) Stand of aquatic plant Widgeon Grass (Ruppia maritima) in Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
![](../../pictures/archives/compress/2015/1581/jpeg/02t.jpg) Dried aquatic plants of brittle naiad (Najas marina) in caked mud of Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
![](../../pictures/archives/compress/2015/1581/jpeg/18t.jpg) Fruits and a flower of aquatic plant Widgeon Grass (Ruppia maritima) taken from Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
![](../../pictures/archives/compress/2015/1581/jpeg/15t.jpg) Dense stand of aquatic plant Widgeon Grass (Ruppia maritima) in Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
![](../../pictures/archives/compress/2015/1581/jpeg/22t.jpg) Cluster of fruits of aquatic plant Widgeon Grass (Ruppia maritima) taken from Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
![](../../pictures/archives/compress/2015/1581/jpeg/06t.jpg) Dried aquatic plants of brittle naiad (Najas marina) on muddy bottom of Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
![](../../pictures/archives/compress/2015/1581/jpeg/20t.jpg) Close up of pea shaped fruits of aquatic plant Widgeon Grass (Ruppia maritima) taken from Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
![](../../pictures/archives/compress/2015/1581/jpeg/19t.jpg) Membranous sheath with a flower(?) of aquatic plant Widgeon Grass (Ruppia maritima) taken from Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
![](../../pictures/archives/compress/2015/1581/jpeg/21t.jpg) Close up of membranous sheath of aquatic plant Widgeon Grass (Ruppia maritima) taken from Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
![](../../pictures/archives/compress/2015/1581/jpeg/23t.jpg) Close up of pea shaped fruits (drupelets) of aquatic plant Widgeon Grass (Ruppia maritima) taken from Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
![](../../pictures/archives/compress/2015/1581/jpeg/24t.jpg) Close up of membranous sheath with coiled stalk (peduncle) bearing flowers and fruits of aquatic plant Widgeon Grass (Ruppia maritima) taken from Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
![](../../pictures/archives/compress/2014/1371/jpeg/05t.jpg) Ant s eggs under a stone near Abu Nakhlah ponds. Southern Qatar, March 5, 2014
![](../../pictures/archives/compress/2014/1371/jpeg/11t.jpg) Reeds (Phragmites australis) in Abu Nakhlah ponds. Southern Qatar, March 5, 2014
![](../../pictures/archives/compress/2014/1371/jpeg/04t.jpg) Saltcedar (Tamarix nilotica or may be T. aphylla) near Abu Nakhlah ponds. Southern Qatar, March 5, 2014
![](../../pictures/archives/compress/2014/1337/jpeg/01t.jpg) Group of workers on construction of Qatar Petroleum (QP) Building West Bay sitting after a shift. Doha, Qatar, February 8, 2014
![](../../pictures/archives/compress/2014/1337/jpeg/02t.jpg) Group of workers on construction of Qatar Petroleum (QP) Building West Bay sitting at sunset after a shift. Doha, Qatar, February 8, 2014
![](../../pictures/archives/compress/2022/3203/jpeg/15t.jpg) A road near a wastewater treatment plant in Lick Creek Park. College Station, Texas, August 4, 2022
![](../../pictures/archives/compress/2004/423/jpeg/24t.jpg) Deer Island Light (modern tower) and Deer Island Sewage Treatment Plant (Boston Harbor Wastewater Treatment Plant) in Boston Harbor, view from a boat. Boston, Massachusetts, November 11, 2004
![](../../pictures/archives/compress/2015/1581/jpeg/05t.jpg) Drying Abu Nakhla jail ponds (sewage lagoons), April 18, 2015
![](../../pictures/archives/compress/2016/1832/jpeg/12t.jpg) Remains of a car near Abu Nakhla lagoons. South from Doha, Qatar, May 27, 2016
![](../../pictures/archives/compress/2014/1371/jpeg/08t.jpg) Blooming marsh fleabane (Pluchea dioscoridis, Baccharis dioscorides, Conyza dioscorides) on banks of Abu Nakhlah ponds. Southern Qatar, March 5, 2014
![](../../pictures/archives/compress/2014/1371/jpeg/07t.jpg) Flowers of marsh fleabane (Pluchea dioscoridis, Baccharis dioscorides, Conyza dioscorides) on banks of Abu Nakhlah ponds. Southern Qatar, March 5, 2014
![](../../pictures/archives/compress/2014/1371/jpeg/09t.jpg) Close up of flowers of marsh fleabane (Pluchea dioscoridis, Baccharis dioscorides, Conyza dioscorides) on banks of Abu Nakhlah ponds. Southern Qatar, March 5, 2014
![](../../pictures/archives/compress/2014/1371/jpeg/06t.jpg) Fluffy pappus of marsh fleabane (Pluchea dioscoridis, Baccharis dioscorides, Conyza dioscorides) on banks of Abu Nakhlah ponds. Southern Qatar, March 5, 2014
![](../../pictures/archives/compress/2014/1371/jpeg/10t.jpg) Fluffy flowers of marsh fleabane (Pluchea dioscoridis, Baccharis dioscorides, Conyza dioscorides) on banks of Abu Nakhlah ponds. Southern Qatar, March 5, 2014
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