Why do they call elk a satellite bull?

The term "satellite bull" is used to describe a male elk that is not the dominant bull of a particular herd. These bulls are typically younger and smaller than the dominant bull and are not able to compete with him for breeding rights. As a result, they often stay on the periphery of the herd, following the dominant bull and his harem of cows.

Satellite bulls may also be referred to as "peripheral bulls" or "subordinate bulls." They are an important part of the elk social structure, as they help to maintain the balance of power within the herd. By keeping the satellite bulls in check, the dominant bull is able to ensure that he has exclusive access to the cows.

Satellite bulls typically become dominant bulls when the current dominant bull is killed or dies. They may also become dominant if the current dominant bull is injured or otherwise incapacitated. In some cases, satellite bulls may even be able to challenge the dominant bull for his position. However, these challenges are often unsuccessful, as the dominant bull is usually much stronger and more experienced.

Satellite bulls play an important role in the elk mating system. They help to ensure that the strongest and healthiest bulls are able to reproduce, which is essential for the survival of the species.