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  1. Polar Bear with newborn cubs, Canning River, Arctic National Wildlife Refuge, Alaska
  2. Common Furniture Beetle
  3. Polar Bear playing with her newborn spring cubs outside their den, Alaska
  4. Polar bear on pack ice of frozen coastal plain, Arctic National Wildlife Refuge, Alaska
  5. Spirit bear, Kermode, walking along a beach looking for salmon, central British Columbia
  6. Dall Sheep ram resting on a hillside, Mount Margaret, Denali National Park, Alaska
  7. Thousands of migrating snow geese, wintering in New Mexico
  8. Polychrome Pass Along The Kantishna Wilderness Trail In Denali National Park, Alaska
  9. Juvenile snowy owl on a beach along the arctic coast, Alaska
  10. Colorectal Cancer Cell, SEM
  11. Polar bear footprints on the pack ice of the frozen coastal plain, Alaska
  12. Sea Salt, SEM
  13. Porcupine Quill, Light Micrograph
  14. Uric Acid Crystals, SEM
  15. Mouth Cancer Cell, SEM
  16. Sandhill Crane in flight over pond, New Mexico
  17. Kidney Glomeruli, SEM
  18. Moonrise Over The Alaska Mountain Range With Wonder Lake, Denali National Park
  19. Euplotes Ciliate Protozoan, SEM
  20. Polar Bear And Cub, Alaska, 1002 Area Of The Arctic National Wildlife Refuge
  21. Polar Bear And Cub, Alaska, 1002 Area Of The Arctic National Wildlife Refuge
  22. Coronary Blood Clot, SEM
  23. Prostate Cancer Cell, SEM
  24. Scenic View Of The Moonset Over Denali From Wonder Lake, Denali National Park, Alaska
  25. Evening view of Franciscan Church, Presernov Trg Square and Triple Bidge, Slovenia
  26. Bloodworm, SEM
  27. A curious polar bear cub on newly formed pack ice along the arctic coast
  28. Colorectal Cancer Cell, SEM
  29. Penguin Feather, SEM
  30. Diatom Detail, SEM
  31. Dendritic Cell, SEM
  32. Blood Cells, SEM
  33. Diatom, SEM
  34. Dendritic Cell, SEM
  35. Diatom, SEM
  36. Red Blood Cells, SEM
  37. Prefontaine (1996)
  38. Diatoms And Sponge Spicules, SEM
  39. Colorectal Cancer Cell, SEM
  40. Neurone, SEM
  41. Probiotic Flora, SEM
  42. Male Lyme Disease Tick, Light Micrograph
  43. Fly In Pitcher Plant Trap, SEM
  44. Gallstone, SEM
  45. Skin Wound, SEM
  46. A Horse Stands Beside A Forest Of Bare Trees In Winter; Alberta, Canada
  47. Blood From Wound Site, SEM
  48. Diatom, SEM