There have been some glorious hyena groups, and I remember the species with a certain fondness - they are such interesting creatures in the real world. Their rankings in reality are VERY strict - almost like a monarchy type thing. And the females tend to be bigger, which I love because mostly females are the smaller ones in a species. And the lowest female rank is still higher than the highest male rank! They are odd creatures, and get a lot of bad press (You know, the evil, maniacal creatures you get in the TLK) but are still amazing!
The only thing that bothers me is that the females are usually made smaller by users, when realistically they should be big... but a fair mistake. c: