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Qatar Natural History Group (QNHG) on dunes of Jazirat Umm Tays, barrier island at northern tip of Qatar, east from Ruwais, March 24, 2012

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

Feral dogs in Jazirat Umm Tays, barrier island at northern tip of Qatar, east from Ruwais, March 24, 2012

Seaweed (algae) on a beach of Jazirat Umm Tays, barrier island at northern tip of Qatar, east from Ruwais, March 24, 2012

Dead corals on a beach of Jazirat Umm Tays, barrier island at northern tip of Qatar, east from Ruwais, March 24, 2012

Sedge (Cyperus conglomeratus) in sands of Jazirat Umm Tays, barrier island at northern tip of Qatar, east from Ruwais, March 24, 2012

Corals and sea snails at low tide on a beach of Jazirat Umm Tays, barrier island at northern tip of Qatar, east from Ruwais, March 24, 2012

European seaheath (Frankenia pulverulenta) in sands of Jazirat Umm Tays, barrier island at northern tip of Qatar, east from Ruwais, March 24, 2012

Algae Oyster Thief (Colpomenia sinuosa) at low tide on a beach of Jazirat Umm Tays, barrier island at northern tip of Qatar, east from Ruwais, March 24, 2012

Blooming Sea Lavender (Limonium axillare, local name Qetaif) in sands of Jazirat Umm Tays, barrier island at northern tip of Qatar, east from Ruwais, March 24, 2012

Seedling of a salt tolerant plant Anabasis setifera in dunes of Jazirat Umm Tays, barrier island at northern tip of Qatar, east from Ruwais, March 24, 2012

Buck s horn groundsel (Senecio glaucus, mureer) in sands of Jazirat Umm Tays, barrier island at northern tip of Qatar, east from Ruwais, March 24, 2012

Flowers of Sea Lavender (Limonium axillare, local name Qetaif) in sands of Jazirat Umm Tays, barrier island at northern tip of Qatar, east from Ruwais, March 24, 2012

Shells of a marine gastropod mollusk (sea snail) Clypeomorus bifasciatus at low tide in Jazirat Umm Tays, barrier island at northern tip of Qatar, east from Ruwais, March 24, 2012

Desert Hyacinth (Cistanche tubulosa) with a host plant, a salt tolerant succulent, at Jazirat Umm Tays, barrier island at northern tip of Qatar, east from Ruwais, March 24, 2012

Tiny desert flowers of European seaheath (Frankenia pulverulenta) growing in sands of Jazirat Umm Tays, barrier island at northern tip of Qatar, east from Ruwais, March 24, 2012

Dried parasitic plant Cynomorium coccineum (desert, or red thumb, tarthuth) in dunes of Jazirat Umm Tays, barrier island at northern tip of Qatar, east from Ruwais, March 24, 2012

Egyptian Fig-marigold (slenderleaf ice plant, Mesembryanthemum nodiflorum, local name Ghasoul) in dunes of Jazirat Umm Tays, barrier island at northern tip of Qatar, east from Ruwais, March 24, 2012

Small yellow flowers of Buck s horn groundsel (Senecio glaucus, mureer) in sands of Jazirat Umm Tays, barrier island at northern tip of Qatar, east from Ruwais, March 24, 2012

Small flower of Egyptian Fig-marigold (slenderleaf ice plant, Mesembryanthemum nodiflorum, local name Ghasoul) in sands of Jazirat Umm Tays, barrier island at northern tip of Qatar, east from Ruwais, March 24, 2012

Mud crab in mangroves area near Jazirat Umm Tays, barrier island at northern tip of Qatar, east from Ruwais. Qatar, April 12, 2013

Eggs of sea birds Sterna (terns) in Jazirat Umm Tays, barrier island at northern tip of Qatar, east from Ruwais. Qatar, April 12, 2013

Some sand mounds in shallow water of salt marsh near Jazirat Umm Tays, barrier island at northern tip of Qatar, east from Ruwais. Qatar, April 12, 2013

Intertidal algal cyanobacterial mats in mangroves area near Jazirat Umm Tays, barrier island at northern tip of Qatar, east from Ruwais. Qatar, April 12, 2013

Aerial roots (pneumatophores) of mangroves (Avicennia marina) in salt marsh near Jazirat Umm Tays, barrier island at northern tip of Qatar, east from Ruwais. Qatar, April 12, 2013

Mangroves (Avicennia marina) with aerial roots (pneumatophores) in salt marsh near Jazirat Umm Tays, barrier island at northern tip of Qatar, east from Ruwais. Qatar, April 12, 2013

Intertidal polygonally cracked algal cyanobacterial mats in mangroves area near Jazirat Umm Tays, barrier island at northern tip of Qatar, east from Ruwais. Qatar, April 12, 2013

Qatar Natural History Group (QNHG) wading near Al Mafjar village, northern area near Ruwais. Qatar, April 12, 2013

QNHG (Qatar Natural History Group) watching birds on a small peninsula. Ruwais, Northern Qatar, April 3, 2015

QNHG (Qatar Natural History Group) exploring a bone on a beach of a small peninsula. Ruwais, Northern Qatar, April 3, 2015

QNHG (Qatar Natural History Group) heading to watch birds on a small peninsula. Ruwais, Northern Qatar, April 3, 2015

Qatar Natural History Group (QNHG) touring excavations at al-Ruwaydah, a late Islamic site near Ruwais in northern Qatar, May 3, 2013

Mud creepers (mangrove whelk, brackish-water snail, gastropod mollusk, Terebralia palustris) in mangroves area near Jazirat Umm Tays, barrier island at northern tip of Qatar, east from Ruwais. Qatar, April 12, 2013

Mangrove whelk (mud creepers, brackish-water snail, gastropod mollusk, Terebralia palustris) in mangroves area near Jazirat Umm Tays, barrier island at northern tip of Qatar, east from Ruwais. Qatar, April 12, 2013

Jack Russell Terrier dog of Qatar Natural History Group (QNHG) in sands of Harrarah, 40 miles south-west from Doha. Qatar, March 2, 2012

Group of birdwatchers from QNHG (Qatar Natural History Group) near Abu Nakhla wastewater treatment ponds. Doha, Qatar, March 29, 2014

Group of birdwatchers from QNHG (Qatar Natural History Group) on a service road near Abu Nakhla wastewater treatment ponds. Doha, Qatar, March 29, 2014

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

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

Birdwatching with QNHG (Qatar Natural History Group) near Abu Nakhla wastewater treatment ponds. Doha, Qatar, March 29, 2014

Watching birds with QNHG (Qatar Natural History Group) near Abu Nakhla wastewater treatment ponds. Doha, Qatar, March 29, 2014

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

QNHG (Qatar Natural History Group) gathering in a tea hall in Trainah agricultural settlement. Southern Qatar, November 6, 2015

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

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

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

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

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

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

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

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

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

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

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

Qatar Natural History Group in desert. Harrarah, 40 miles south-west from Doha. Qatar, March 5, 2010

Qatar Natural History Group walking in desert. Harrarah, 40 miles south-west from Doha. Qatar, March 5, 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

Mangrove forest (Avicennia marina) at low tide at northern tip of Qatar, east from Ruwais, March 24, 2012

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 wading at low tide in Arabian (Persian) Gulf near Mesaieed, north from Doha. Qatar, January 29, 2010

Qatar Natural History Group in Ras Abrouq peninsula in west central coastal area, north from Zekreet. Qatar, April 8, 2011

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

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

Group of mangrove trees (Avicennia marina) in shallow water near northern cliffs of Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, December 20, 2015

Plant of Bienertia sinuspersici on a beach near Umm Tays Island in Madinat Al Shamal area. Northern Qatar, June 26, 2015

Shoot of Bienertia sinuspersici on a beach near Umm Tays Island in Madinat Al Shamal area. Northern Qatar, June 26, 2015

Seedling of Bienertia sinuspersici on a beach near Umm Tays Island in Madinat Al Shamal area. Northern Qatar, June 26, 2015

Abandoned villa at northern tip of Qatar in Khasooma area, east from Ruwais. Qatar, April 12, 2013

Bienertia sinuspersici emerging from sand on a beach near Umm Tays Island in Madinat Al Shamal area. Northern Qatar, June 26, 2015

Plant of Bienertia sinuspersici in sand on a beach near Umm Tays Island in Madinat Al Shamal area. Northern Qatar, June 26, 2015

Salt tolerant plant of Bienertia sinuspersici on a beach near Umm Tays Island in Madinat Al Shamal area. Northern Qatar, June 26, 2015

Young plant of Bienertia sinuspersici in sand on a beach near Umm Tays Island in Madinat Al Shamal area. Northern Qatar, June 26, 2015

Salt marshes near Umm Tays Island in Madinat Al Shamal area. Qatar, March 14, 2014

Dead coral on a beach of Umm Tays Island in Madinat Al Shamal area. Qatar, March 14, 2014

Bones of a sea bird on a beach of Umm Tays Island in Madinat Al Shamal area. Qatar, March 14, 2014

Glasswort (Arthrocnemum macrostachyum) on Umm Tays Island in Madinat Al Shamal area. Qatar, March 14, 2014

Brown sea grass on a beach of Umm Tays Island in Madinat Al Shamal area. Qatar, March 14, 2014

Blooming Polycarpaea spicata on sand of Umm Tays Island in Madinat Al Shamal area. Qatar, March 14, 2014

Flower of Cistanche tubulosa on a beach of Umm Tays Island in Madinat Al Shamal area. Qatar, March 14, 2014

Flower of Cistanche tubulosa on sand of Umm Tays Island in Madinat Al Shamal area. Qatar, March 14, 2014

Polycarpaea spicata with flowers on a beach of Umm Tays Island in Madinat Al Shamal area. Qatar, March 14, 2014

Air bladders of sargassum seaweed on a beach of Umm Tays Island in Madinat Al Shamal area. Qatar, March 14, 2014

Blooming Polycarpaea spicata on a beach of Umm Tays Island in Madinat Al Shamal area. Qatar, March 14, 2014

Tracks of a small crab on a beach of Umm Tays Island in Madinat Al Shamal area. Qatar, March 14, 2014

Glasswort (Arthrocnemum macrostachyum) on a beach of Umm Tays Island in Madinat Al Shamal area. Qatar, March 14, 2014

Ostrich on northern tip of Haloul Island (Jazirat Halul). Qatar, April 19, 2013

Northern tip of Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, April 2, 2016

Northern tip of Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, April 24, 2015

Sea lavender (Qetaif, Limonium axillare) on a beach of Umm Tays Island in Madinat Al Shamal area. Qatar, March 14, 2014

Flower of Cistanche tubulosa on a sandy beach of Umm Tays Island in Madinat Al Shamal area. Qatar, March 14, 2014

Flowers of Cistanche tubulosa at salt marshes near Umm Tays Island in Madinat Al Shamal area. Qatar, March 14, 2014

Bladders (aerocysts) of sargassum seaweed on a beach of Umm Tays Island in Madinat Al Shamal area. Qatar, March 14, 2014

Basal rosette of Polycarpaea spicata on a beach of Umm Tays Island in Madinat Al Shamal area. Qatar, March 14, 2014