The hunter was on a 10-day moose hunt with a friend near the Chisana River drainage at the time of the attack, according to the National Park Service.
With few fish and limited berries, bear encounters are high in Alaska's capital city this year.
This year has seen a dramatic increase in bear activity with bear-related calls up by 600%, according to police chief Heath Scott. As many as 22 bears have been shot in defense of property this year.
The bear tunneled under the zoo’s perimeter fence and broke through the cedar split rail fence around the alpaca enclosure before killing Caesar, according to the zoo’s executive director, Pat Lampi. Another alpaca -- Fuzzy Charlie -- was found unhurt though wide-eyed and skittish.