I'll understand if you happen to find this suggestion overly morbid, but since our packs can already devour befriended bearyenas... ..., I'd like to propose the packs should be able to hunt and ingest rogue males and possibly wandering nichelings. Both rogues and wanderers would give the same amount of feedings (7?) and would be able to protect themselves/flee on a level corresponding to their genes. For example, a strong/poisonous/spiky/etc. wandering nicheling could pose a serious threat