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  1. Close-up of horned lizard camouflaged by environment
  2. The Watchman and Virgin River at sunset.
  3. Harris Hawk in flight prepares to land on dead limb
  4. Black Jaguar
  5. Monarch butterfly chrysalis about to hatch
  6. California, Yosemite National Park, El Capitan lit by sunlight
  7. Colorado. A falconer's golden eagle takes flight at sunrise
  8. Close-up of adult Greater Roadrunner bird
  9. California, wild mule deer pair in dead grasses
  10. El Capitan framed by snow-covered black oaks in winter, Yosemite
  11. California, Eastern Sierra Nevada Mountains, Aspen trees in autumn color
  12. Female Sparkling Jewelwing displays while perched on a waterplant leaf
  13. Glossy Ibis In Breeding Plumage, Los Angeles, California
  14. Northwest Territories, Great Slave Lake, gray wolf alpha male and pup in taiga forest
  15. Close-up of captive red-eyed tree frog on bromeliad flower
  16. Washington, Olympic National Park, Pacific Madrone tree bark detail
  17. Texas, Rio Grande Valley, Javelina adult and juvenile drinking at water hole
  18. California, Death Valley National Park, storm clouds at sunrise
  19. Male red-tailed pennant dragonfly on limb