They have a dominance hierarchy that is separate by gender.

Dominance hierarchies can be formed at a very early age.

One of its most common functions is to establish a dominance hierarchy.

Males have a linear dominance hierarchy based on age and size.

There also is a linear dominance hierarchy in any herd.

The term dominance hierarchy is often used for this phenomenon in other animals.

Groups often establish a dominance hierarchy determined by aggressive behavior.

Males within a group have a dominance hierarchy, with one male having alpha status.

It may be a shorthand reference for a dominance hierarchy.

The final aspect that can determine dominance hierarchies is the environment.

A dominance hierarchy is known to exist in many aggressive animal communities.

Yet there may be more to the structure of these dominance hierarchies than meets the eye - or less.

Tail length is important in the determination of dominance hierarchies.

In social groups of macaques, there is a clear dominance hierarchy among females.

In particular, groups form a clear dominance hierarchy where only dominant pairs breed.

They have linear dominance hierarchies that are remembered based on individual recognition.

Each group has multiple males, which establish a dominance hierarchy amongst themselves.

Male aggression, interestingly, was not correlated with position in the dominance hierarchy.

The establishment of a settled dominance hierarchy itself is the main limit on aggression.

Dominance hierarchies exist in parallel for both males and females.

Thus, reductions in egg laying are created by dominance hierarchies.

When breeding, dominance hierarchies among males are established through aggression.

This conflict over reproduction in some cases results in a dominance hierarchy.

Males fight each other to establish dominance hierarchy and mating priority.