John Cancalosi / Sonoran desert toad (Incilius alvarius) pair mating, with trail of spawn in water. Arizona, USA.
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John Cancalosi / Sonoran desert toad (Incilius alvarius) pair mating, trail of toad spawn in water. Sonoran desert, Arizona, USA. August.
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John Cancalosi / Sonoran desert toad (Incilius alvarius) pair in amplexu, trail of toad spawn in water. Sonoran desert, Arizona, USA. August.
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John Cancalosi / Colorado river toad (Incilius alvarius) pair mating. Sonoran desert, Arizona, USA. August.
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John Cancalosi / Colorado river toad (Incilius alvarius) male calling to attract females, vocal sac filled with air. Sonoran desert, Arizona, USA. August.
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Jack Dykinga / Burrowing owl (Athene cunicularia) female feeding Colorado river toad (Incilius alvarius) to chick. In evening light, Marana, Arizona, USA. May.
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LYNN M. STONE / Colorado River Toad (Bufo alvarius) also known as Sonoran Desert Toad, captive, from southeast California, southern Arizona, extreme southwest New Mexico, and Sonora, Mexico. Non-exclusive
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Michael D. Kern / Sonoran desert toad (Bufo alvarius) USA
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John Cancalosi / Sonoran Desert Toad (Bufo alvarius) face portrait, Sonoran Desert, Arizona
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Barry Mansell / Sonoran Desert Toad / Colorado River Toad {Bufo alvarius} Arizona, USA
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John Cancalosi / Sonoran Desert Toad / Colorado River Toad (Bufo alvarius), Sonoran Desert, Arizona, USA
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Barry Mansell / Sonoran desert toad {Bufo alvarius} Arizona, USA