More info about porcupine: http://www.hedweb.com/animimag/poripine.htm

A text summary of the clickable map above, meant for web-crawlers and other automatic tools:
porcupine included in porcupine population
porcupine eats bark
porcupine eats buds and twigs
porcupine eats fruit
porcupine eats herb
porcupine eats leaf
porcupine eats nut
porcupine is a type of prey
porcupine is a type of primary consumer
porcupine eaten by bobcat
porcupine eaten by fox