Usually less than 20 years; but can reach
30 years
Size (shoulder):
Mature Boars - up to 5 feet
Mature Sows - up to 3-1/2 feet
Weight:
Mature Boars - 750 to 1,500 pounds
Mature Sows 350 - 750 pounds
Hearing
Good to excellent by human standards
Vision
Ability to distinguish color and activity
at all levels of light (considered good, but
not exceptional)
Smell
"A pine needle fell in the forest.
The eagle saw it. The deer heard it.
The bear smelled it." (unknown
author)
Strength
"... a brown (bear) ... took a thousand-pound
steer a half mile up an almost vertical mountain.
Much of the way through alder tangles with
trunks three or four inches thick." (Bast,
Bears)
Claws
Usually black; may be whitish on older
bears; used for digging; foreclaws
usually 4-5"; rear claws shorter
Track
Fore 6 to 8" long, 7 to 9"
wide; Hind 12 to 16" long,
8 to10-1/2" wide