Fresh Newbie - 70% Clueless

Hello!

I joined just yesterday and though I think I have a pretty good grasp on how to play, I can always use some tips! Things such as how do I gain more adult wolf slots (I was at 4 and then at some point, I gained another slot? Was this part of the beginner's quests?), what happens when a pup grows up but you don't have any more adult slots, and what happens when a wolf dies (also, immortal wolves?). 

Thank you!!

You gain your fifth slot after completing one of the achievements, I think. All the other slots cost silver cones, up until slot 100, where it switches to costing gold cones. Here's a link to where people have been compiling the prices for each slot. If you don't have enough slots for pups, when they get close to aging into adults, you will get a warning that some adolescents will leave your pack soon. In that scenario, I think you get to choose which ones to keep, but I'm not sure. I'm also not sure what happens when wolves die, because it hasn't happened to me yet, but I know that wolves (unless they're pups) probably won't die until after age 7.