Typically 3 to 7 years. May reproduce in consecutive years if a litter dies before the mating season. Good near vision. Untested distance vision. Smelling ability extremely good.
Limit is untested.
Can generalize to the simple concept level. Long-term memory excellent. Heaviest brain, relative to body length, of any land carnivore. Variable grunts in amiable situations. Loud blowing when frightened.