The Eastern Band of Cherokee Indians in North Carolina has a long history of suffering and hardship, and adversity on their territory has not yet come to an end. The sovereign land is home to three decrepit roadside zoos, in which animals are deprived of everything that is natural and important. One zoo, Chief Saunooke Bear Park, was exposed recently after a People for the Ethical Treatment of Animals undercover investigation documented desperate bears incessantly turning circles in cement pits, so stressed by the grotesquely inhumane conditions that some have broken their teeth while biting the metal bars of their cages in frustration.

It’s puzzling that this situation is allowed to continue, particularly because non-natives own and operate the zoos — all located on tribal land — even though the conditions clearly appear to violate tribal law. The Tribal Council has done nothing to intervene, much less put a stop to the cruelty. It’s time for these zoos to be closed.

Surrounded by four solid walls, the bears at Chief Saunooke Bear Park cannot see anything beyond their allotted space — a pitiful fraction of what bears actually need. In their natural habitat, bears are curious and energetic animals that spend their time exploring diverse terrain, foraging for a wide variety of foods and digging in soft earth, brush and leaves. The zoo’s concrete pits have no grass or dirt. They are simply holes in which bears are forced to beg for food and to wait for visitors to throw it to them. One bear was shot in the head 20 times before dying, and a zookeeper admitted to eating at least one bear.

But this roadside zoo is just one of hundreds in which animals suffer and die. All over the country, animal collectors market their tawdry outfits as roadside Americana or, worse, as “rescue” facilities that give animals in trouble a safe haven. The vast majority are frauds, making money off the misery of animals and the kind hearts of people who want to help them.

Animals in roadside zoos are typically confined to chain-link or chicken-wire cages with nothing but concrete to walk, sleep and eat on. Some owners toss out an old tire or a ball to give visitors the impression that animals can use them to pass the interminable hours, but most of them have no enrichment whatsoever, not even a patch of grass.

Animals who may not get along are jammed into the same pen. Predators are housed in close proximity to prey. Babies are traumatically removed from their mothers immediately after birth to be used as photo props. The lives of these animals are turned upside down. Many pace incessantly, rock back and forth or even hurt themselves by chewing on their fingers, plucking out their feathers or grooming themselves raw.

The U.S. Department of Agriculture licenses animal exhibitors, but the laws protecting captive animals don’t go far enough and the standards that do exist are not properly enforced. Animals must be given food, water and shelter, but cages only need to be “large” enough for an animal to be able to move around a little bit. There is no requirement for grass, shrubbery or other natural vegetation.

Since there are no restrictions on breeding animals, owners churn out babies, knowing that they’ll bring in customers. But babies grow up quickly, leaving a surplus of adult animals with less and less space and fewer resources to meet their complex needs. Exotic animals often go without veterinary care, and zoo operators would often rather depend on free road kill or donated rotten meat than spend money on wholesome, quality food.

If you’re on a road trip and see a zoo billboard trying to entice you to pull over or if a traveling exhibitor is selling photo ops with tiger cubs at your local mall, please think about the suffering that you’ll be supporting before buying a ticket.

Dan Paden is a senior research associate with People for the Ethical Treatment of Animals.