A few weeks ago, I needed to make a Climb skill check for my Sentinels Bear Companion. I rolls d20+5 due to the bears strength, but later I got to wonder if I should have added anything extra.
Even though my Sentinel has a strength bonus of +0, he is actually better at climbing than his companion, which feels wrong to me. The PC is trained in athletics, gains gains extra points from his level, a +2 bonus from his bear and a +2 from a climbing kit.
It seems to me that at the very least I should have added +2 to the roll for the bear due to his claws (my GM would almost certainly have agreed they are perfect for climbing), but should I have consiered it trained? Does it get it's own +2 to athletics? Does it gain any level related bonus? I may have missed something, but it would be strange if animals natural skills didn't improve as their combat and defensive attributes improved (base plus level for AC etc.).
What am I missing here?