The ability scores from some large bears:
Brown Bear/Polar Bear: Str 27, Dex 13, Con 19, Int 2, Wis 12, Cha 6
Dire Bear: Str 31, Dex 13, Con 19, Int 2, Wis 12, Cha 10 ("A typical dire bear is 12 feet long and weighs as much as 8,000 pounds.")
Dire Polar Bear: Str 39, Dex 11, Con 23, Int 2, Wis...