Rolf Nussbaumer / Big Bend NP, Chihuahuan desert, Texas, USA. Strawberry cactus + Prickly pear cactus.
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Michio Hoshino / Galapagos Land Iguana (Conolophus subcristatus) and Prickly Pear (Opuntia sp) cactus, Galapagos Islands, Ecuador
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Karine Aigner / Western diamondback rattlesnake (Crotalus atrox) coiled up at base of Prickly pear cactus (Opuntia sp). Texas, USA. April.
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Karine Aigner / North American bobcat (Lynx rufus) juvenile amongst Prickly pear (Opuntia sp) cacti. Texas, USA. July.
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Karine Aigner / Green lynx spider (Peucetia viridans) on Prickly pear cactus (Opuntia sp). Texas, USA. June.
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Jack Dykinga / Santa Rita prickly pear (Opuntia santarita) cactus flower with new growth spines on pad. Santa Catalina mountains foothills, Upper Sonnoran Desert, Arizona, USA. May.
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Nick Upton / Walled fields of Prickly pear / Barbary fig (Opuntia ficus-indica) on volcanic soil, formerly harvested for Cochineal insects (Dactylopius coccus), with Monte Corona volcanic peak in the background, n...
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John Chan / Mourning dove (Zenaida macroura) perched on a Coastal pricklypear (Opuntia littoralis), avoiding the spines as it takes flight, Southern California, USA, April.
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Alan Murphy/ BIA / Green Jay (Cyanocorax yncas) calling from prickly pear cactus, Texas
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Nick Hawkins / Galapagos prickly pear (Opuntia echios), a vulnerable species. Isabela Island, Galapagos.
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Nick Hawkins / Common cactus finch (Geospiza scandens) perched on Prickly pear (Opuntia). San Cristobal Island, Galapagos.
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John Cancalosi / Fishhook barrel cactus (Ferocactus wislizeni) flowering besides Prickly pear (Opuntia sp), in desert. Arizona.