Pet Question

I've been looking for a suitable pet for awhile now, and I finally found one that I like (raven). So I set out to find and raise one...upon finding it I death lvl'd it to lvl 11 and charmed it. Thus making it "Aggressive", upon doing so I began to level it the reverse method...letting it die alot and doing more damage than it (as though working towards a hearty pet). Which should theoretically bring it somewhere near Elder status. Not really worried if it doesn't work out like that..but upon hitting lvl 15 a few mins ago its evolution is still "Aggressive". I was under the impression that upon reaching lvl 15 the second evolution would take place..what gives? (Just curious)

Its a puzzle quite a few people want answers to.

I did much as you did with my pets, I read a few articles and tried to make them elder or dire, they always turn out hearty.
I wonder if any of the information we have on pet leveling is known fact or guestimates based on the writers experience.

There are a few Elder pets you can charm, certainly seen a few on my travels.

Some pets you get are already at level 20 and don't give any name at all, my Black Moa doesnt say what type it is.

The Black Moa is (supposedly) Elder. I'm just curious why it didn't evolve to something, lol. Its lvl 16 and still Aggressive xD.

My tiger got to "playful" at some point and never changed, all the way to lvl 20.

I just renamed him Herschell and that took care of it.