 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
 Bedouin with a herd of sheep near Qal at Ruwayda archeological Site on northwest coast. Qatar, February 6, 2010
 Salt-and-pepper moth (Utetheisa lotrix) or may be Utetheisa pulchella on glasswort near Ruwayda archeological site on northwest coast. Qatar, February 6, 2010
 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
 Excavated stone walls of Zubara City (archeology site) on northwest coast. Qatar, March 13, 2010
 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
 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
 Qatar Natural History Group in desert. Harrarah, 40 miles south-west from Doha. Qatar, March 5, 2010
 Qatar Natural History Group measuring depth of a pond between Al Wakra and Mesaieed, north from Doha. Qatar, January 29, 2010
 Qatar Natural History Group walking in desert. Harrarah, 40 miles south-west from Doha. Qatar, March 5, 2010
 Qatar Natural History Group wading at low tide in Arabian (Persian) Gulf near Mesaieed, north from Doha. Qatar, January 29, 2010
 Qatar Natural History Group outing on limestone hills of Harrarah, 40 miles south-west from Doha. Qatar, March 5, 2010
 Qatar Natural History Group discovered some small critter in desert. Harrarah, 40 miles south-west from Doha. Qatar, March 5, 2010
 Qatar Natural History Group (QNHG) touring excavations at al-Ruwaydah, a late Islamic site near Ruwais in northern Qatar, May 3, 2013
 Ruins of Zubara City (archeology site) on northwest coast. Qatar, March 13, 2010
 Group of birdwatchers from QNHG (Qatar Natural History Group) near Abu Nakhla wastewater treatment ponds. Doha, Qatar, March 29, 2014
 Excavations of ruins of Zubara City (archeology site) on northwest coast. Qatar, March 13, 2010
 Group of birdwatchers from QNHG (Qatar Natural History Group) on a service road near Abu Nakhla wastewater treatment ponds. Doha, Qatar, March 29, 2014
 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
 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
 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
 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
 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
 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
 Ruined village of Al Jumail (Jumayl) used for film set, west of Ruwais on northwest coast. Qatar, February 6, 2010
 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
 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
 Ruined house in a village of Al Jumail (Jumayl) used for film set, west of Ruwais on northwest coast. Qatar, February 6, 2010
 Window frames in ruined village of Al Jumail (Jumayl), west of Ruwais on northwest coast. Qatar, February 6, 2010
 Dandelion like flower of Launaea mucronata(?) in Al Jassasiya rock carvings archeological site, on north-eastern coast. Qatar, March 4, 2010
 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
 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
 Stone house in ruined village of Al Jumail (Jumayl) used for film set, west of Ruwais on northwest coast. Qatar, February 6, 2010
 Stone walls in ruined village of Al Jumail (Jumayl) used for film set, west of Ruwais on northwest coast. Qatar, February 6, 2010
 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
 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
 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
 Broken stone walls in a ruined village of Al Jumail (Jumayl) used for film set, west of Ruwais on northwest coast. Qatar, February 6, 2010
 Graffiti on stone walls in ruined village of Al Jumail (Jumayl) used for film set, west of Ruwais on northwest coast. Qatar, February 6, 2010
 Dying beached Annulated sea snake (Hydrophis lapemoides) near village of Al Jumail (Jumayl), west of Ruwais on northwest coast. Qatar, February 6, 2010
 QNHG (Qatar Natural History Group) watching birds on a small peninsula. Ruwais, Northern Qatar, April 3, 2015
 Qatar Natural History Group (QNHG) wading near Al Mafjar village, northern area near Ruwais. Qatar, April 12, 2013
 Birdwatching with QNHG (Qatar Natural History Group) near Abu Nakhla wastewater treatment ponds. Doha, Qatar, March 29, 2014
 QNHG (Qatar Natural History Group) gathering in a tea hall in Trainah agricultural settlement. Southern Qatar, November 6, 2015
 QNHG (Qatar Natural History Group) exploring a bone on a beach of a small peninsula. Ruwais, Northern Qatar, April 3, 2015
 Qatar Natural History Group (QNHG) at Jazirat Umm Tays, barrier island at northern tip of Qatar, east from Ruwais, March 24, 2012
 QNHG (Qatar Natural History Group) heading to watch birds on a small peninsula. Ruwais, Northern Qatar, April 3, 2015
 Watching birds with QNHG (Qatar Natural History Group) near Abu Nakhla wastewater treatment ponds. Doha, Qatar, March 29, 2014
 Qatar Natural History Group in Ras Abrouq peninsula in west central coastal area, north from Zekreet. Qatar, April 8, 2011
 Excavated remains of a building on the Kassite dye site in Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, February 19, 2010
 Excavated shell midden on the Kassite dye site in Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, February 19, 2010
 Excavated stone walls on the Kassite dye site in Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, February 19, 2010
 Qatar Natural History Group (QNHG) on dunes of Jazirat Umm Tays, barrier island at northern tip of Qatar, east from Ruwais, March 24, 2012
 Excavated remains of a stone building on the Kassite dye site in Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, February 19, 2010
 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
 Jack Russell Terrier dog of Qatar Natural History Group (QNHG) in sands of Harrarah, 40 miles south-west from Doha. Qatar, March 2, 2012
 Reconstructed Zubara Fort on northwest coast. Qatar, March 13, 2010
 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
 Stone building of the village school in ruined fishermen village of Al Jumail (Jemail, Jumayl), west of Ruwais on northwest coast. Qatar, February 6, 2010
 Al Hussein Mosque (Mohammed Bin Hussein Bin Ghanem El Rayeq Qubaisi) in a fishing village of Al Jumail (Jumayl) used for film set, west of Ruwais on northwest coast. Qatar, February 6, 2010
 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
 Ruined village of Al Jumail (Jumayl) used for film set, west of Ruwais on northwest coast. Qatar, March 3, 2010
 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
 Stone house in ruined village of Al Jumail (Jumayl) used for film set, west of Ruwais on northwest coast. Qatar, March 3, 2010
 Reconstructed Zubara Fort on northwest coast. Qatar, February 11, 2011
 Twig of mangrove (Avicennia marina) with fruits taken from a site west of Ruwais on northwest coast. Qatar, September 20, 2014
 Cut seeds of mangrove (Avicennia marina) with fruits taken from a site west of Ruwais on northwest coast. Qatar, September 20, 2014
 Fishing rope among sea grass on a beach near ruined village of Al Jumail (Jumayl) used for film set, west of Ruwais on northwest coast. Qatar, March 3, 2010
 Cut halves of a seed of mangrove (Avicennia marina) with fruits taken from a site west of Ruwais on northwest coast. Qatar, September 20, 2014
 Dissected seeds of mangrove (Avicennia marina) with fruits taken from a site west of Ruwais on northwest coast. Qatar, September 20, 2014
 Head stones of Zubara Cemetery of the northern tribes (Al Naeem, Al Kabsa, Al Kaaban, Al Bukwara, Al Muhanada, Al Mananah) on northwest coast. Qatar, March 13, 2010
 Dissected half of a seed of mangrove (Avicennia marina) with fruits taken from a site west of Ruwais on northwest coast. Qatar, September 20, 2014
 Zubara Martyrs Cemetery of the northern tribes (Naim, Al Kaaban, Bu Kuwara, Almhandh, Almannanah, Bani Hajar, Al Murra, Qahtan and Yam) on northwest coast. Qatar, March 13, 2010
 Rock carving (stone engravings, petroglyphs) of traditional fishing boats or dhows (a group of boats with oars, in bas relief) on a rocky ridge in Jabal Al Jassasiya site, on north-eastern coast. Qatar, March 4, 2010
 Group of fishing boats with oars on rock carvings (stone engravings, petroglyphs) on a rocky ridge in Jabal Al Jassasiya site, on north-eastern coast. Qatar, February 21, 2015
 Excavated remains of a stone building on the Kassite dye site in Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, February 25, 2011
 Al Hussein Mosque (Mohammed Bin Hussein Bin Ghanem El Rayeq Qubaisi) in a fishing village of Al Jumail (Jumayl) used for film set, west of Ruwais on northwest coast. Qatar, February 11, 2011
 Reconstructed Zubara Fort on northwest coast. Qatar, June 20, 2015
 Powder flask (Northwest India, 18th century, wood, paint, gilt) on display in Museum of Islamic Art. Doha, Qatar, February 27, 2010
 Ruined village of Al Jumail (Jumayl) west of Ruwais on northwest coast. Qatar, September 20, 2014
 Sand from ant mound near Jabal Al Jassasiya, on north-eastern coast. Qatar, December 26, 2015
 Shoot of Bienertia sinuspersici near village of Al Jumail (Jumayl) west of Ruwais on northwest coast. Qatar, September 20, 2014
 Suaeda aegyptiaca with flowers near village of Al Jumail (Jumayl) west of Ruwais on northwest coast. Qatar, September 20, 2014
 Mangrove (Avicennia marina) with fruits near village of Al Jumail (Jumayl) west of Ruwais on northwest coast. Qatar, September 20, 2014
 Sand crab in shallow water near village of Al Jumail (Jumayl) west of Ruwais on northwest coast. Qatar, September 20, 2014
 Fruits of mangrove (Avicennia marina) near village of Al Jumail (Jumayl) west of Ruwais on northwest coast. Qatar, September 20, 2014
 Bienertia sinuspersici with flower buds near village of Al Jumail (Jumayl) west of Ruwais on northwest coast. Qatar, September 20, 2014
 Excavated remains of a house on the Kassite dye site in Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, September 26, 2014
 Insects show at Museum of Natural History. Washington DC, February 5, 1998.
 Crickets on National Geographic magazines at Museum of Natural History. Washington DC, February 5, 1998.
 Rocky ridge covered by rock carvings (stone engravings, petroglyphs) in Jabal Al Jassasiya site, on north-eastern coast. Qatar, March 4, 2010
 Group of circular stone huts in a ravine encircled by a horseshoe of steep limestone cliffs (remnants the Qatar TV production) in Ras Abrouq peninsula in west central coastal area, north from Zekreet. Qatar, February 13, 2010
 Arabic calligraphy on a natural leaf (Turkey, 20th century, gold) on display in Museum of Islamic Art. Doha, Qatar, February 27, 2010
 Rock carving (stone engravings, petroglyphs) of a dhow fishing boat on a rocky ridge in Jabal Al Jassasiya site, on north-eastern coast. Qatar, March 4, 2010
 Thunderstorm clouds over Zubara archeological site. Northern Qatar, November 28, 2014
 Brown jellyfish on a beach near Zubara archeological site. Northern Qatar, October 24, 2014
 Approaching cold front over Zubara archeological site. Northern Qatar, November 28, 2014
 Thunderstorm clouds from a beach of Zubara archeological site. Northern Qatar, November 28, 2014
 Rock carving (stone engravings, petroglyphs) of daisy like pattern (rosette of cup marks) and a double row of cupmarks on a rocky ridge in Jabal Al Jassasiya site, on north-eastern coast. Qatar, March 4, 2010
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