Fisher, Fishers, Martes pennanti, fauna, Mustelid, Mustelids, Mustelidae, Weasel Family, North American wildlife, wildlife, carnivore, carnivorous, carnivores, Predator, Predators, Hunter, Hunters, Forest, Forests, North America, Kitchin, Hurst, Predator-Prey, Predation, Hunting, eating, feeding, food, survival, Vertical, snowshoe hare, Winter, Mammal, Mammals, Prey, furbearer