Antlion (doodlebug) funnel pits in Birch Creek Unit of Somerville Lake State Park, July 14, 2013
Antlion (doodlebug) funnel pits in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 14, 2011
Antlion (doodlebug) funnel pits in sand in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 20, 2022
Antlion (doodlebug) funnel pits under a park shed near Birch Creek Unit of Somerville Lake State Park. Texas, October 7, 2018
Antlion (doodlebug) funnel pits on Forest Service Road 203 near Richards Loop Trail in Sam Houston National Forest. Texas, July 28, 2022
Sand ripples in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, May 20, 2016
Windblown sand in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, May 20, 2016
Limestone hill in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
Hills and sands in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
Dry weathered wood in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 29, 2016
Sedge (Cyperus conglomeratus) in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, May 20, 2016
Weathered wood in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
Twigs of Traganum nudatum taken from Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, May 20, 2016
Broken limestone in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
Sandstone cliff in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 8, 2016
Limestone cliffs in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
Sandy area near cliffs in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, May 20, 2016
Desert from the top of a hill in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
Mountain slope in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, June 25, 2016
Limestone cliffs in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
Sandy area in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, June 25, 2016
Windblown sand in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, June 25, 2016
Sandy desert in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, June 25, 2016
Limestone layers in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, June 25, 2016
Top section of a limestone cliff in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
Windblown sand and limestone cliffs in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, May 20, 2016
Wind erosion of limestone cliffs in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, May 20, 2016
Grass Chrysopogon plumulosus(?) on sand in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, May 20, 2016
Edge of a limestone cliff in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
Limestone rock formation in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
Ant highway on a slope of a hill in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
Vegetation on sand dunes in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 8, 2016
Edge of a tabletop hill in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
Sunrise in sandy area in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, June 25, 2016
Wind abrasion of limestone cliffs in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, May 20, 2016
Cracked limestone rocks in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, June 25, 2016
Erosion of limestone cliffs in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
Limestone rock layers in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
View from a limestone cliff in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
Grass Stipagrostis obtusa in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 8, 2016
Sand dunes near the spring in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, March 4, 2016
Vegetation around a limestone cliff in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
Plateau of a tabletop mountain in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
Odd shapes of limestone cliffs in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
Orange limestone formation in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
Weathering of limestone cliffs in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
Overhanging limestone rocks in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, June 25, 2016
Sunrise over limestone rocks in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, June 25, 2016
Branches of Traganum nudatum with leaves taken from Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, May 20, 2016
Desert spring of Qulmat Al Maszhabiya in Al Mashabiya Reserve near Abu Samra. Southern Qatar, March 4, 2016
Branch of Agriophyllum minus in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
Steep limestone hill in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
Edge of a limestone cliff in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 8, 2016
Base hub of Agriophyllum minus in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
Broken limestone cliff in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 8, 2016
Pink limestone cliffs in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
Overhanging top of limestone cliffs in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
Overhanging limestone formation in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 8, 2016
Fossilized oyster shells in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 29, 2016
View of desert from a hill in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
Limestone fossil fragments in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 29, 2016
Some grass on sand dunes near the spring in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, January 22, 2016
Rock formation on a tabletop hill in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, June 25, 2016
Wind erosion of limestone cliffs in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, June 25, 2016
Passage near the edge of limestone cliffs in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
Sandy area below a limestone cliff in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 8, 2016
Tribulus macropterus var. arabicus on sand in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, March 25, 2016
Detached sections of pink limestone in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
Cracks and holes in pink limestone in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
Small plant of Lotus garcinii in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
Vegetation on sand dunes near the spring in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, March 18, 2016
Weathered dry wood on a gravel plane in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
Plants of Bienertia sinuspersici at the entrance of Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, June 25, 2016
Green salt tolerant plants in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, June 25, 2016
Weathered dry roots on a gravel plane in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
Decomposing dry wood on a gravel plane in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
Erosion of an orange limestone formation in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
Washed out edge of limestone cliffs in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
Gravel mound at the foot of a hill in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
Top part of a steep limestone hill in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
Dry wood near the edge of limestone cliffs in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
Sedge (Cyperus conglomeratus) on sand in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, March 25, 2016
Greater plantain (Plantago boissieri) in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
View of desert from the top of limestone cliffs in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
Desert grass Panicum turgidum in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, March 25, 2016
Sandy area on a tabletop mountain in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, June 25, 2016
Vegetation at the foot of limestone cliffs in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 29, 2016
Broken part of a limestone cliff in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
Blooming Tribulus macropterus var. arabicus in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 8, 2016
Plant of Agriophyllum minus in sand in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 8, 2016
Detached piece of limestone cliffs in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
Erosion of an edge of a tabletop hill in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
Broken pieces of limestone cliffs in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
Exfoliation of limestone on a slope of a hill in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
Fossilized oyster shells on the ground in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 29, 2016
Close up of leaves of Agriophyllum minus in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
Close up of a plant of Agriophyllum minus in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
Common salt grass (Aeluropus lagopoides) in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, May 20, 2016
Texture of an orange limestone formation in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
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