A pack is a social group of conspecific canines. Packs aren't formed by all canines, small canines especially. Such an example of this is the Red fox. The number of members in a pack and their social behavior varies from species to species. Social structure is very important in a pack. Every pack member has a position and a role to play. Canine packs are led by a breeding pair, consisting of the alpha male and alpha female.

Pack behavior in specific species

African wild dogs (Lycaon pictus) live and hunt in packs. Males assist in raising the pups, and stay with their pack for life, while the females leave their birth pack at about the age of two and a half years old to join a pack with no females. Males outnumber the females in a pack, and usually, only one female is present to breed with all males. African wild dogs are not territorial, and they hunt cooperatively in their packs. For example, they will run down large game and tear it apart with their pack. They also cooperate in caring for wounded, sick, and young pack members.

Pack (canine)

Gray wolves (Canis lupus) usually live in packs that consist of adult parents and their offspring of perhaps the last 2 or 3 years. The adult parents are usually unrelated and other unrelated wolves may sometimes join the pack. Wolves usually hunt in packs, but they hunt alone in the spring and summer months when there is plenty of prey available. They are found in both Eurasia and North America.

Pack (canine)

Black-backed jackals (Canis mesomelas) in Southern and Eastern Africa and coyotes (Canis latrans) in North America have a single long-term mate, but usually hunt alone or in pairs. Both parents care for the young, and the parents and their current offspring are the pack. They occasionally cooperate in larger packs to hunt large games. Black-backed jackals are not typically considered 'aggressive' towards larger animals and are wary of humans. However, they will become aggressive if they feel threatened, to defend the boundaries of their territories.

Pack (canine)

The Ethiopian wolf (Canis simensis) pack members hunt for rodents alone and come together mainly to defend their territory from rival packs.

Corsac foxes sometimes form packs, unlike some other fox species.

Pack behavior in grey wolves

Wolves are known for forming affiliative bonds within the pack hierarchy. Wolves in packs are known for "Play-Fighting" with one another. It has been observed that the playing between wolves is not random: it may be a reflection of the relationships present in the pack, reflecting any tension, cooperation, and competition present. Tensions are noted to become higher around breeding season. This is due to increased opportunities for reproduction. Individuals challenge the group hierarchy to gain a better quality of mates. This leads to greater interspecific competition and tension. Female wolves are known for being the main initiators of affiliative interactions, though a small percentage of males will initiate affiliative interactions. The omega male is not a target of any affiliative interaction. In other studies, researchers have separated the most dominant wolf from the most subordinate wolves. It was recorded that the dominant wolf spent less time sleeping and showed more behavioral stress compared to the omega wolf. The dominant wolf was reported to rest in the section of his enclosure closest to his pack. Furthermore, researchers noted that younger, more subordinate wolves appear to have less attachment to their pack compared to their higher-ranking compatriots.

Wolves' cooperation is essential for tasks such as hunting and protecting the young, though the level of attachment present in the pack is not necessarily equal. The majority of wolves are known for dispersing from their birth pack; this makes measuring attachment behavior within the packs difficult. Though there are cases in which wolves leave their pack, typically when accompanying siblings of the same sex. This behavior is suggested to be a form of adaptive behavior that benefits both pack mates in future conflicts.

All individuals benefit from being a member of the wolf pack; the weak are supported by the efforts of stronger wolves, and higher-ranking individuals enjoy better and larger kills than could be taken on their own. Protection is granted by sheer number, and larger, more plentiful territory can be won and sustained. Care and protection of the young are shared, and knowledge can be passed down through generations, creating a unique culture within each group