Pack (canine)
Animals which typically predominate over others are associated with the term "alpha". Among pack-living wolves, alpha wolves are the genetic parents of most cubs in the pack. Such access to mating females creates strong selective pressure for intra-sex competition.
Scout leader
The leader of a Cub Scout pack is referred to as "Cubmaster" and he or she may be assisted by "assistant Cubmasters". Since almost all program leadership at the Cub Scouting level is adult, the Cubmaster is also assisted by any number of "den leaders".