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bear deterrents
bear-human interactions
3
black bears
3
electric fencing
3
grizzly bears
3
polar bears
3
ursus americanus
2
ursus arctos
2
ursus maritimus
2
Biology
1
Environmental sciences
1
GE1-350
1
General. Including nature conservation
1
QH1-199.5
1
Ursus americanus
1
Ursus arctos
1
Ursus maritimus
1
Zoology
1
demo
1
envir
1
geographical distribution
1
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