What Is a Beta Wolf? Why Biologists Reject the Term

A beta wolf is traditionally described as the second-ranking wolf in a pack, sitting just below the alpha pair and acting as a kind of deputy leader. In this model, the beta directs mid-ranking pack members, is most likely to replace the current alphas, and serves as an enforcer of social order. But this ranking system comes from mid-20th century studies of wolves held in captivity, and modern wolf biologists have largely abandoned it. In the wild, wolf packs don’t work this way.

The Traditional Pack Hierarchy

The classic framework places wolves into a neat pecking order: alpha at the top, beta just below, mid-ranking wolves in the middle, and one or more omega wolves at the bottom. Under this model, the alpha pair commands the entire group, the beta pair directs mid-level wolves, and the omega absorbs social tension by acting as a scapegoat and peacekeeper. The beta’s defining trait is supposedly its position as heir apparent, the wolf most likely to step into a leadership role if an alpha dies or becomes too old to lead.

In terms of body language, wolves in these ranked groups communicate status through posture. Higher-ranking wolves stand tall with tails held horizontally or above. Lower-ranking wolves crouch, lower their ears, and lick upward at the mouth of a more dominant wolf, a behavior called active submission that closely resembles food-begging in puppies. In passive submission, a wolf rolls onto its side or back while the dominant wolf sniffs it. A beta wolf in a captive pack would receive these submissive gestures from wolves below it while offering the same gestures to the alphas above.

Why Biologists Dropped the Term

L. David Mech, a senior research scientist at the U.S. Geological Survey who has studied wolves in the wild for decades, once used terms like alpha and beta himself. He now considers them decades out of date. The terminology came from watching captive wolves, groups of unrelated adults thrown together by humans. In those artificial conditions, dominance hierarchies do form, much like what might happen in a human prison. Wolves compete for status because they have no family bonds and no natural social structure to fall back on.

Wild wolf packs look completely different. They are families. A typical pack consists of a breeding male, a breeding female, and their offspring from the past two or three years who haven’t yet left to start their own families, usually six to 10 animals total. Occasionally an unrelated wolf joins, but the core unit is parents and kids. “What would be the value of calling a human father the alpha male?” Mech has said. “He’s just the father of the family. And that’s exactly the way it is with wolves.”

In a family pack, the dominance structure is better described as age-graded. Parents naturally lead because they’re the oldest and most experienced. Yearlings and two-year-olds defer to them, not because of violent competition, but for the same reason young animals in most species follow their parents. Researchers observing wild family packs found very few rank displays among the younger wolves. Bloody fights for supremacy are rare.

What Actually Happens in Wild Packs

Without the alpha/beta framework, a wild wolf pack’s social life becomes simpler to understand. The breeding pair makes decisions about where to travel, when to hunt, and where to den. Their older offspring help with tasks like caring for new pups and participating in hunts. When a young wolf reaches one to three years of age, it typically disperses, leaving the pack to find a mate and start its own family. That’s the natural version of “succession.” A wolf doesn’t fight its way from beta to alpha. It leaves home.

Reproduction in wolf packs is typically limited to the dominant breeding pair. Subordinate females, which in the old terminology would include betas, are reproductively suppressed during the mating season. Research on closely related social canids has shown that subordinate females don’t show the hormonal surges or mating behavior seen in dominant females during breeding season. This suppression doesn’t appear to be driven by aggression. It’s a physiological response to the social structure itself. Subordinate females may occasionally ovulate outside the normal mating season, but they rarely produce pups that survive.

Why the Idea Persists

The alpha/beta/omega model remains deeply embedded in popular culture, self-help communities, and even dog training philosophies. Part of the reason is that the original captive studies were widely published and easy to understand. A rigid hierarchy with clear labels is more intuitive than the messier reality of family dynamics. The terminology also maps neatly onto human social anxieties about status and dominance, which has given it a long life in internet culture well beyond anything to do with actual wolves.

The captive model isn’t entirely wrong. It accurately describes what happens when unrelated wolves are confined together. The problem is applying it to wild wolves, where the social bonds are familial, the “ranks” are simply parent and offspring, and the concept of a beta wolf waiting to seize power doesn’t match observed behavior. Submission in wolf packs, rather than being a sign of oppression, appears to function as a way of maintaining friendly relationships and reducing social tension within the group.

So if you’ve encountered the term “beta wolf” in conversation or online, it refers to an outdated scientific concept: the second-in-command of a rigid dominance hierarchy observed only in artificial captive groups. In wild wolf packs, the role doesn’t exist. There are just parents, older siblings, and younger siblings, doing what families do.