Black Monkey Open Our Mouth

Introduction to the article

A monkey is a playful and friendly animal. It takes pleasure in mocking humans. Since people don’t typically pet them, they are primarily found in jungles and forests. Compared to animals like dogs, cats, fish, and birds, their rate of being tickled is relatively low. Due to the parasites and zoonotic diseases that monkeys can spread, humans are at risk. They might seem in perfect health, but when they inevitably bite or scratch someone, they could get one of the disorders your monkey has lying dormant in its body. Due to their propensity for mischief, they may harm items in your home. Those who care for these essential animals create unique living and playing spaces for them. Monkeys have different names in different languages. A monkey in Spanish also known as Mona, and in French, it is named Signe.

Sometimes they seem in a different mood. At the moment, apes are smiling monkeys, and they are crying monkeys the next moment. Like other animals, monkeys also have some health issues and a rare disease that has taken place in monkeys with Down syndrome. In this write-up, we will talk about monkeys with Down syndrome.

Table of contents

  1. A few words about monkeys and monkey Down syndrome
  2. Indications of Down’s syndrome
  3. The number of monkeys reported with Down syndrome
  4. FAQs
  5. Conclusion

A little introduction to monkeys with Down Syndrome

They are gorgeous, naughty, and occasionally enigmatic creatures called monkeys! According to their habitat, they have a variety of distinct adaptations. Most are found in trees. Others are more terrestrial, such as macaques, baboons, and some mangabeys. All monkeys have hands and feet for grasping branches, but some arboreal monkeys also have tails that they can use. Pliable seats are capable of capturing and holding objects. These unique tails are wrinkled on the bottom and highly flexible, allowing them to pick up things as small as peanuts and tree branches. You can see many types of monkeys: fat, ugly, light-skinned, white, black, etc.

As already mentioned, these particular animals also have health problems, and Down syndrome is one of them. Surprisingly, only two cases of monkey Down syndrome reported. We will discuss both of them in the following few passages.

Indications of the monkey with Down syndrome

The ape involved in the case had hypodontia, congenital heart disease, infantile cataracts, vision issues, and limited growth. These signs and symptoms are all frequent among people with Down syndrome. According to behavioral assessments of the affected chimpanzees, the development of trying to sit and going to stand positions was delayed in these chimpanzee trisomy 22 instances.

The number of monkeys with Down syndrome

Only two cases of monkey Down syndrome claims have come to light. Wisconsin-based researchers initially identified a monkey with Down syndrome. The inherited defect was evident in the monkey’s behavior, and chromosome testing supported it. Chimpanzees and gorillas have already identified Down-like syndrome, but a monkey has never before. The monkey’s illness resembles that of infected humans both behaviorally and genetically. Details of these cases are as follows;

1. First case

A female monkey called Azalea was born on June 29, 1988, to a mother who was 21 years old—quite old for this species. At the Wisconsin Regional Primate Research Center, Frans de Waal, an authority on primate behavior, claims that “we recognized within several days that she wasn’t fully normal.” She is in good health and is highly liked by the other monkeys, but she learns considerably more slowly and is less socially engaged than the others.

2. Second case

Japanese researchers identified a 24-year-old female chimp named Kanako as having Down syndrome. The Kumamoto Sanctuary born in a cage and later acquired several unusual traits that made her stand out from other chimpanzees. She had crossed eyes, for instance, and cataracts by the time she was a year old. At the age of seven, she went blind. She also had some cardiac irregularities, and her teeth were undeveloped. Through recent tests, Kanako, later diagnosed with trisomy 22 or having a third copy of chromosome 22.


People usually ask many questions about this specific disease of monkeys. A few questions and their answers are given below.

1. How many chromosomes does a monkey have?

A monkey has 48 chromosomes, while an average human has 46 chromosomes.

2. Is trisomy 22 Down syndrome?

A chromosome problem known as trisomy 22 occurs when there are three copies of chromosome 22 instead of two. The first three months of pregnancy frequently lead to spontaneous abortions. Second-trimester progression and live births are uncommon.

3. Can a monkey have Down syndrome?

When an ape has a third copy of chromosome 22, it can develop trisomy 22, a disorder similar to Down syndrome in chimpanzees, gorillas, and orangutans. In 1969, the first instance of a chimpanzee with trisomy 22 was officially recorded.


The conclusion we get after reading this article is that a monkey is a naughty and playful animal. But people do not pet them because of the germs they carry in their bodies and the space they need to play and live. Fortunately, only two monkeys with Down syndrome have taken place worldwide.

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