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  winning images | science/natural history picture story | Second Place

 

Second Place
Todd Heisler
Rocky Mountain News
"Killer in the Herds" 

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05/23/02 Fort Collins - Dr. Terry Spraker, a veterinary scientist at Colorado State University, looks through a microscope at a slide showing CWD infected lymphoid tissue from a mule deer. After a staining process, prions show up as red dots in the tissue. Infected deer brain tissue shows the telltale microscopic holes caused by the illness.
 
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