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  1. Rose (Rosa sp) detail, Germany
  2. Queen Victoria's Agave (Agave victoriae-reginae), Saguaro National Park, Arizona
  3. Gum Tree (Eucalyptus sp) bark detail, Costa Rica
  4. Common Lime (Papilio demoleus) butterfly wing detail showing false eyespot, Asia
  5. Blue Morpho (Morpho peleides) butterfly wing, Costa Rica
  6. Green Abalone shell interior from Baja California, Riedenburg, Germany
  7. Churning water beside the German icebreaker Polarstern, Weddell Sea, Antarctica
  8. White Rhinoceros
  9. Sea ice core one millimeter thick photographed under polarized light
  10. Flower petals, Germany
  11. Cactus spines, Saguaro National Park, Arizona
  12. King Penguin
  13. American Bison bull, Grand Teton National Park, Wyoming
  14. Grand Prismatic Pool, Midway Geyser Basin, Yellowstone National Park, Wyoming
  15. Madagascar Day Gecko underside detail of foot with scales that have adhesive properties
  16. Cheetah (Acinonyx jubatus) close-up of coat showing spots, Africa
  17. Moth (Automeris zurobara) detail of false eye spot on wing, Europe
  18. Young fern rolled up, highlands, Malaysian Peninsula
  19. Grand Prismatic Pool, Midway Geyser Basin, Yellowstone National Park, Wyoming
  20. American Bison young bull, Grand Teton National Park, Wyoming
  21. Giraffe
  22. Grizzly Bear (Ursus arctos horribilis) tracks on tidal flats, Alaska
  23. Grizzly Bear male at sunrise, Lake Clark National Park, Alaska
  24. Red-eyed Tree Frog (Agalychnis callidryas) detail of foot and eye
  25. Burchell''s Zebra pair, Lake Nakuru National Park, Kenya
  26. Aerial view of Cape May Peninsula showing rivers flowing through salt marsh, New Jersey
  27. Timber Wolf running in snow, Minnesota
  28. Eastern Grey Kangaroo joey reaching into mother's pouch
  29. Panther Chameleon (Chamaeleo pardalis) male, Madagascar
  30. Grizzly Bear
  31. Emperor Penguin pair courting
  32. Buettikofer's Epauletted Bat hanging upside down from roost
  33. Tulip detail showing pistil and stamens, cultivated worldwide
  34. Spiny Desert Rhinoceros Chameleon (Furcifer antimena) skin of male, Madagascar
  35. Saguaro (Carnegiea gigantea) cactus spines, Saguaro National Park, Arizona
  36. Grand Prismatic Pool, Midway Geyser Basin, Yellowstone National Park, Wyoming
  37. Parson's Chameleon (Chamaeleo parsonii) close up of skin of male, Madagascar
  38. Monarch (Danaus plexippus) butterflies flying during a warm day, Michoacan, Mexico
  39. Nootka Lupine at sunset, Chugach National Forest, Kenai Peninsula, Alaska
  40. Red-eyed Tree Frog with semi-transparent eyelid, Costa Rica
  41. Panther Chameleon (Chamaeleo pardalis) detail of scales, Madagascar
  42. Sea ice core one millimeter thick photographed under polarized light
  43. Chambered Nautilus cross-section, Riedenburg, Germany
  44. Masai Giraffe walking
  45. Ostrich female chasing away rival
  46. Olive Ridley Sea Turtle female coming ashore to lay eggs, Ostional Beach, Costa Rica
  47. Savannah Sparrow in field of Nootka Lupine, Alaska
  48. Lyngbye (Chorda tomentosa) algae four centimeters, Helgoland, Germany