Bear cubs have a very small chance to spawn and if they do spawn, then a normal bear or mother bear spawns nearby also (not beside the bear, about 75 tiles away)
the bear cub will be able to be picked up, But Beware, if you do so the mother bear will enrage even at full HP and run even faster then a normal bear as it enters in combat with you to attack you and will also have faster attacks and will also swim to attack you or your boat, swimming slowers the bear tho, allowing a way to escape for those who can at boat speed (running speed) and the bear will only be able to swim at walking speed.
the rest of the stats of the enraged mother bear aside from agility and movement speed would be just the same as the enraged bear.
So what is the bear cub for? why is it worth running away from an enraged bear that is super insanely fast while your carrying it at crawl speed?
you can raise it.
the bear would eat alot of food (lets say 6 units per day?) and it takes a real time month for it to grow (alot of time) but when it does, depending on the quality of food you fed it will determine its stats, you can command it to destroy or attack other units (only the one who fist picked up the bear when it was a cub tho), but in adult form it will it thrice or twice as much as when it used to it when it was a cub (so be sure you have alot of food).
if your pet bear is wounded then you can apply a gauze on it just like you apply it to another player, and it will have the same effect as on human
thats my idea... its prolly hard work for the devs but im sure they can do it :3