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Best National Parks for Wildlife Spotting

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saguaro

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Saguaro National Park, AZ

Darwinism is on full display at the 91,400-acre Saguaro, where animals have had to adapt to wildly swinging temperatures and incessant drought. Jackrabbits cool off through their large ears, javelinas can eat prickly pear cacti without harm, and kangaroo rats draw water from seeds. This reptilian paradise houses desert tortoises, desert iguanas, regal horned lizards, Gila monsters (one of two poisonous lizards in the world), Sonoran mountain king snakes, and six species of rattlesnakes. Birds, such as roadrunners, American kestrels, Gila woodpeckers, and Gambel's quail, are also common.

Viewing Tip: Resourceful birds often nest inside saguaro cacti, which number about 1.6 million in the park.

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