Most circus animals are not treated well by the standards wildlife experts use to measure animal welfare. While U.S. federal law sets minimum care requirements, the reality of life on the road, the training methods commonly used, and the physical toll on the animals paint a picture that has led more than 150 cities and counties, along with a growing number of states, to ban wild animals from traveling performances altogether.
What the Law Requires
The Animal Welfare Act is the main federal law governing how circus animals must be treated in the United States. It requires every exhibitor to have a veterinarian who provides care under a formal arrangement, including regularly scheduled visits. Someone must observe every animal daily to check for health or behavioral problems, and any concerns must be communicated to the veterinarian promptly.
The law also states that handling “shall be done as expeditiously and carefully as possible in a manner that does not cause trauma, overheating, excessive cooling, behavioral stress, physical harm, or unnecessary discomfort.” Physical abuse is explicitly prohibited during training, and food or water cannot be withheld as a training tool. These rules sound protective on paper. The gap between what the law says and what happens in practice is where the problems begin.
How Circus Animals Are Trained
Training circus animals to perform tricks that are completely unnatural to them, such as elephants standing on their hind legs or big cats jumping through hoops, requires overriding the animal’s instincts. For elephants, the primary training tool has historically been the bullhook (also called an ankus), a steel-tipped hook used to apply pressure to sensitive areas of the body. The animal learns to perform a behavior to avoid the pain or discomfort of the hook. This approach relies on punishment and the removal of pressure as a reward, rather than offering the animal any real choice.
Positive reinforcement training, where animals receive food rewards for desired behaviors, does exist and gives animals more control over their environment. But it has not been the standard in traditional circus operations, where tight performance schedules and constant travel make slow, trust-based training methods less practical. The distinction matters: an animal trained through pressure and punishment exists in a fundamentally different psychological state than one trained through rewards.
Chronic Stress in Captive Animals
Scientists measure stress in animals by looking at levels of glucocorticoids, hormones released by the adrenal glands during stressful events. Cortisol is the primary stress hormone in most mammals. Researchers can measure it in blood, feces, or even hair. Fecal samples reflect stress over the previous one to two days, while hair samples capture long-term stress patterns over weeks or months.
A comprehensive review published in Frontiers in Veterinary Science found that captive animals consistently show higher stress hormone levels than free-ranging animals of the same species, in both fecal and hair samples. In captive cheetahs, examination of the adrenal glands revealed physical changes consistent with chronic stress. These findings apply broadly to captive environments, but circus conditions add layers of stress that even zoo animals don’t face: frequent transport, unfamiliar venues, loud crowds, and performance demands.
Physical Health Problems
Foot and joint disease is one of the clearest indicators of how captive life affects large animals, particularly elephants. Foot problems are so common and so debilitating that they are a leading reason elephants in Western facilities are euthanized.
In North American zoos, 67.4% of elephants had at least one foot problem in the most recent major study, with nail issues affecting over 92% of those cases. Arthritis affected 36% of zoo elephants, and lameness was documented in 18%. By contrast, elephants in Thailand’s tourist camps, which spend more time on natural ground surfaces, had lower rates of severe foot disease (only 2% severe), and arthritis was described as “comparatively rare.” The difference comes down to surfaces: elephants that spend more time standing on concrete or hard flooring develop worse joint and foot conditions. Circus elephants, housed on trailers and performing on arena floors, face similar or worse conditions than zoo elephants.
Elephants with joint problems also showed higher levels of fecal stress hormones, suggesting that chronic pain and chronic stress compound each other.
Life on the Road
Traveling is the defining feature that separates circus life from other forms of captivity. Circus animals spend significant portions of their lives in transport vehicles, moving between cities for performances. While some jurisdictions require rest stops after a maximum of two hours of continuous travel, the U.S. federal regulations lack specific limits on total transport duration or minimum space requirements for traveling enclosures.
For animals that would naturally roam dozens of miles per day, confinement in a transport vehicle is a radical restriction. Elephants in the wild walk 10 to 30 miles daily. Big cats maintain territories spanning hundreds of square miles. The contrast between these natural movement patterns and the inside of a trailer is extreme, and the repetitive nature of constant travel, loading, unloading, and performing in unfamiliar environments creates a cycle of disruption that compounds over an animal’s lifetime.
Repetitive Behaviors as Warning Signs
One of the most visible signs of poor welfare in captive animals is the development of stereotypic behaviors: repetitive, purposeless movements like swaying, pacing, head-bobbing, or bar-biting. These behaviors are rarely seen in wild animals. They emerge when an animal’s environment is so restricted that it cannot express normal behaviors like foraging, exploring, or socializing.
Elephant swaying is perhaps the most recognized example. An elephant rocking rhythmically from side to side is not dancing or enjoying itself. It is displaying a coping mechanism for psychological distress. Big cats pacing the same path in their enclosure, over and over, are doing the same thing. These behaviors tend to be more prevalent in environments with less space and fewer enrichment opportunities, which describes most circus setups during travel and between performances.
The Legal Landscape Is Shifting
The growing body of evidence about circus animal welfare has driven a wave of legislation. California banned the use of all animals in circuses in 2019, except for dogs, cats, and domesticated horses. New Jersey and Hawaii banned wild and exotic animals from traveling shows in 2018. Colorado followed in 2021, banning elephants, big cats, bears, and other animals from circuses. Maryland and Massachusetts passed similar bans in 2024, and Washington state enacted its own ban in 2025.
Illinois and New York specifically banned elephants from traveling shows as early as 2017. Kentucky banned endangered species from circuses and exotic animals from county fairs in 2022, including elephant rides. Across the country, more than 150 cities and counties in 37 states have restricted or banned wild animals in traveling performances, with over a third of those laws passing since 2014. The trend is accelerating, not slowing down.
Ringling Bros. and Barnum & Bailey Circus, once the most prominent circus in the United States, retired its elephant acts in 2016 and shut down entirely in 2017 before relaunching without animal acts. That decision reflected both public pressure and the practical reality that maintaining large wild animals on the road had become legally, financially, and ethically untenable.
What “Treated Well” Actually Means
The question of whether circus animals are treated well depends on what standard you apply. If the standard is whether they receive food, water, and veterinary attention, many circus operations meet that bar. If the standard is whether the animals can express natural behaviors, maintain physical health, and live without chronic stress, the evidence consistently says no. The elevated stress hormones, the high rates of foot and joint disease, the prevalence of stereotypic behaviors, and the inherent constraints of constant travel all point in the same direction.
Animal welfare science evaluates five domains: nutrition, environment, health, behavioral interactions, and mental state. A circus environment can reasonably address the first of these. It struggles with the rest. That gap is why the legal and cultural tide has turned so decisively against wild animal performances over the past decade.