A mule deer carcass in Yellowstone National Park tested positive for the fatal neurological illness known as chronic wasting disease. (NPS / Neal Herbert)

'Zombie Deer Disease' Documented in Yellowstone for the First Time

The neurological condition, called chronic wasting disease, has a 100 percent fatality rate in the deer, moose and elk it infects

Margaret Osborne

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© Marco Zaffignani