While there's no denying how adorable a baby chimpanzee or spider monkey may be, efforts to contain these animals as pets are costly, and only wind up hurting the animal.

The Journal of Applied Animal Welfare Science has stood behind research that categorically labels nonhuman primates as unsuitable for private ownership since 2008¹. The American Bar Association supports even more sweeping standards, adopting a resolution in 2015 supporting laws prohibiting the "possession, sale, breeding, import, or transfer of dangerous wild animals, such as big cats, bears, wolves, primates, and dangerous reptiles²."

Yet, the primate trade continues to operate in the United States. According to National Geographic, anything from macaques to marmosets, and even endangered species, can be procured for upwards of $50,000³. But no matter how cute or clever, keeping a primate a a pet can set that animal up for serious frustrations in life.

"If you try to keep them as pets you're creating a mentally disturbed animal in 99.9 percent of the cases," said Veterinarian Kevin Wright, director of conservation, science and sanctuary at the Phoenix Zoo in Arizona. "The animal will never be able to fit in any other home. Never learn how to get along with other monkeys. And, more often than not, will end up with a lot of behavioral traits that are self-destructive."

Beyond primate personality problems, the bacteria these animals are capable of carrying can prove deadly to humans, and vice versa. Some monkeys are capable of transmitting the Herpes B virus, which can lead to severe brain damage or death, according to the Centers for Disease Control and Prevention⁴.

"By definition, a pet is an animal we touch and play with in our homes and in no way is it in a primate's best interest to be constantly touched and played with by people. They need their own social groups, are extremely hard to care for and often grow up to be aggressive and impossible to control," Dr. Sharon Redrobe, veterinary surgeon and CEO of Twycross Zoo, Warwicks, told The Guardian⁵.

The legislated protections for primates in the U.S. come primarily from the Animal Welfare Act, which merely requires enclosures be of a certain size⁶, but place no restrictions on the sales or transport of the animals.

The dangers of keeping a primate warrant a nationwide ban on the ownership of any primate as a pet, no matter the species. Sign below to demand the U.S. Department of Agriculture, the Senate Committee on Agriculture, and the House Committee on Agriculture work together to put a full ban on owning primates as pets in the U.S.

More on this issue:

1. Carl D. Soulsbury, Graziella Iossa, Sarah Kennell, Stephen Harris, Taylor & Francis Online (2008, Dec. 23), "The Welfare and Suitability of Primates Kept as Pets."
2. Carson Barylak, International Fund for Animal Welfare (16 February 2015), "American Bar Association supports exotic animal bans."
3. Maryann Mott, National Geographic (16 September 2003), "The Perils of Keeping Monkeys as Pets."
4. Centers for Disease Control and Prevention (18 July 2014), "B Virus (herpes B, monkey B virus, herpesvirus simiae, and herpesvirus B)."
5. Ben Garrod, the Guardian (28 February 2016), "No more monkey business: why primates should never be pets."
6. Animal Welfare Institute, "Non-Human Primates."