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  2. Dominance hierarchy - Wikipedia

    en.wikipedia.org/wiki/Dominance_hierarchy

    A high-ranking male mandrill advertises his status with bright facial coloration. [1]In the zoological field of ethology, a dominance hierarchy (formerly and colloquially called a pecking order) is a type of social hierarchy that arises when members of animal social groups interact, creating a ranking system.

  3. List of dominance hierarchy species - Wikipedia

    en.wikipedia.org/wiki/List_of_dominance...

    The American pika (Ochotona princeps) is known to maintain strict territorial boundaries, and dominance between individuals is enforced through a dominant pika invading another pika's territory, forcing the latter out. The general hierarchy of dominance has been observed (higher to lower in dominance) from male to female and adult to juvenile.

  4. Dominance signal - Wikipedia

    en.wikipedia.org/wiki/Dominance_signal

    Visual communication is a common dominance signal among animals. They are an effective modality as they come at a low cost to the animal and minimize risk. The Gila Monster (Heloderma suspectum) for example, express bright orange splotches during territorial conflict to warn competitors that they are poisonous, and thus assert their dominance over a territory.

  5. Great white shark - Wikipedia

    en.wikipedia.org/wiki/Great_white_shark

    This shark's behaviour and social structure are complex. In South Africa, white sharks have a dominance hierarchy where an individual's rank is primarily established by their size, and to a lesser extent, their sex and "squatter's rights"; larger sharks dominate smaller sharks, females dominate males, and established residents dominate ...

  6. Pack (canine) - Wikipedia

    en.wikipedia.org/wiki/Pack_(canine)

    Any parent is dominant to its young offspring, so alpha adds no information. Why not refer to an alpha female as the female parent, the breeding female, the matriarch, or simply the mother? Such a designation emphasizes not the animal's dominant status, which is trivial information, but its role as pack progenitor, which is critical information.

  7. Sheep - Wikipedia

    en.wikipedia.org/wiki/Sheep

    Dominant animals are inclined to be more aggressive with other sheep, and usually feed first at troughs. [65] Primarily among rams, horn size is a factor in the flock hierarchy. [66] Rams with different size horns may be less inclined to fight to establish the dominance order, while rams with similarly sized horns are more so. [66]

  8. Eusociality - Wikipedia

    en.wikipedia.org/wiki/Eusociality

    Eusociality is a rare but widespread phenomenon in species in at least seven orders in the animal kingdom, as shown in the phylogenetic tree (non-eusocial groups not shown). All species of termites are eusocial, and it is believed that they were the first eusocial animals to evolve, sometime in the upper Jurassic period (~150 million years ago ...

  9. Social rank theory - Wikipedia

    en.wikipedia.org/wiki/Social_rank_theory

    Social rank theory provides an evolutionary paradigm that locates affiliative and ranking structures at the core of many psychological disorders.In this context, displays of submission signal to dominant individuals that subordinate group members are not a threat to their rank within the social hierarchy.