Marie Antoinette syndrome is a phenomenon in which a person’s hair suddenly turns white (depigmentation). The condition’s name comes from the folk tale of French queen Marie Antoinette, whose hair is said to have suddenly turned white before her execution on October 16, 1793. People often assume that this syndrome is caused by pressure – perhaps this is most evident in the photos of the head of state before and after taking office. Compare President Obama before and after taking office, retiring. However, because the specific mechanism of graying hair has not been elucidated, it is not clear that 3 factors of aging, genetic factors and stress will affect gray hair to what extent. Recently, researchers from Harvard University published a study in the journal Nature that identified the mechanism by which rat hair turns gray prematurely under stress. The average human scalp has 100,000 hair follicles, and humans also have many different hair colors. Hair color is determined by melanocytes, which produce melanin that absorb light in various combinations. Melanocytes are derived from melanocytes (MeSC), located in the protruding part of the hair follicle. The hair growth cycle is divided into three phases, namely the anagen growth phase, the catagen resting phase, and the telogen long metabolic (shedding) phase. Hair growth cycle: growth phase, resting phase and shedding phase (from left to right). Melanocytes are produced during the growth phase. As a person ages, the melanin stem cells will gradually deplete, and the pigment produced will have a “salt-and-pepper” color, then turn gray, and finally white – the pigment is completely lost. in all hair follicles. At first, researchers suspected that stress would trigger an immune attack on melanin stem cells. But this was later proven to be a false hypothesis, as the mice lacked immune cells but remained mutated and had white spots. Stress increases the secretion of the hormone cortisol, so researchers are beginning to suspect that the hormone cortisol is responsible for the hair color change. However, when the cortisol-producing glands were removed in the mice, the mice’s fur would still turn white. Finally, the scientists focused on the sympathetic nervous system, the system in the body that is used to control the stress response in dangerous situations. Through studies, scientists discovered that melanocytes are located in the bulging part of the hair follicle, surrounded by neurons of the sympathetic nervous system, and release a neurotransmitter molecule. nerve is called norepinephrine. Melanin stem cell activity under normal and stressful conditions. As can be seen in figure a, under normal conditions, melanin stem cells (MeSCs) migrated from the bulge (in the direction of the red arrow) and differentiated into melanocytes during the analysis. From there, melanocytes synthesize pigment to make the regenerated hair dark. During the degenerative and resting phase, these stem cells begin to die. However, in the next growth phase, there will still be a large amount of new MeSC used to replace the dead stem cells. In figure b, the researchers found that external pressure stimulates and activates the sympathetic nervous system, increasing adrenaline release in the hair follicles. Norepinephrine then causes the MeSCs to completely transform into melanocytes, and none of the stem cells survive the growth phase in the next cycle. Since no new melanocytes are produced, the hair is naturally greyish white. The researchers also tested the effects of different pressures on the fading of the mice’s fur. At different stages of hair growth, they exposed the mice to three different stressors – pain, limited mobility, and psychological stress. All three of these factors induce MeSC depletion, which eventually leads to the appearance of white hairs. Previous popular theories believed that stress-induced hormonal changes (such as corticosterone) or autoimmune reactions were responsible for graying hair. The researchers examined these underlying mechanisms, first by blocking corticosterone signaling, and then by stressing the mice’s immune systems. In either case, corticosterone changes or autoimmune responses did not induce MeSC depletion. However, the researchers found that the expression of MeSCs depends on an adrenaline receptor, which responds to adrenaline. The adrenal glands are the main source of adrenaline. But surprisingly, the researchers found that removing these glands still did not prevent the mice’s coat color from turning gray under stress. Another source of adrenaline is the sympathetic nervous system (SNS), which is active in response to stress. The researchers demonstrated that the bulge area is internally connected by sympathetic neurons. Using neurotoxin molecules to destroy the SNS or prevent sympathetic neurons from releasing adrenaline could prevent hair from turning gray due to stress. Next, the researchers studied mice with activated sympathetic neurons and found that over-activating the SNS in these mice could cause hair to turn gray without stress. Taken together, these results indicate that adrenaline released from activated sympathetic neurons induces MeSC depletion. The red shows the melanin stem cells at the bottom of the hair follicles and the sympathetic nerves are shown in green around them. Therefore, the culprit behind Marie Antoinette Syndrome is adrenaline, but our problem is not over yet. Stress produces adrenaline which turns our hair gray, so can a silvery bangs help relieve stress? The team from Harvard University, led by Xu Yajie, believes that hair-whitening is actually a side effect of sympathetic nervous system stress processing: “For species like octopuses and geckos flowers have the ability to change color rapidly, the pigment cells in their body will be activated under the influence of the nervous system, but in today’s mammals, only melanocytes remain. very sensitive to the hormones secreted by the nervous system. Once the hormone is secreted in excess, these cells are inadvertently activated.” Gray hair color is not life-threatening, so in the process of evolution, this small defect has remained. In fact, in the face of stress, hair doesn’t actually turn completely white overnight, which is a slow process and lasts for several months. In addition to being associated with stress and age, gray hair can sometimes be related to experience, leadership, and trust. For example, when a male silverback mountain gorilla is fully grown, it will grow gray hair on its back and become the leader of the gorillas. After being subjected to enough pressure, individuals that are “dyed” white often have a higher status in the community than their age.

The work is in the Top 10 scientific books of the year by Booklist, Top 11 books of the Daily Beast and was voted by the New York Times Book Review as a Notable Book in 2012. (Source: Medisights) The faces of murderers are different With disease origin, David Quammen weaves an exceptional story, a detective novel with very different, but also very real, killers. They are viruses, bacteria and protozoa that cause disease in animals, but sometimes, they will change their target and jump to humans. Each chapter of the book is a journey in pursuit of a new criminal, led by a team of detectives from all over the world. The book is the notes of David Quammen in the process of accompanying them, following the traces to find the culprit. After the first chapter on the terrible virus that decimates both horses and humans, the Ebola virus emerges through a dark story, with dead gorillas stacked on top of each other, carrion in the woods and magic. The story doesn’t need the usual Ebola hype to create a macabre atmosphere (with bloody tears and melted organs) and the author doesn’t need to, because the disease itself terrible enough. He is more interested in delving into these diseases, learning what we already know about them and how that helps us prevent new diseases from appearing in the future, while limiting their consequences. their fruit. In each chapter, the diseases gradually become clear, starting with just a couple of rumors, a few mysterious deaths that seem unrelated to each other. The investigation process gradually unravels the problem, until finally the truth of the culprit is revealed. Along the way, we’ll see the myriad ways pathogens can move from host to host – through feces, secretions, mucus and blood – and explore possible dangerous behaviors leads to exposure: climbing trees, drinking date sap, eating or simply touching dead animals. The author also looks for unintentional accomplices who are animals that carry the disease before it is transmitted to humans: pigs, birds, monkeys, gorillas and bats. The Detective’s Journey However, the real heroes here are the detectives – scientists who work non-stop, from the lab to the field, looking for answers to cases committed by petty murderers. baby caused. Not only talented in describing how the virus works, David Quammen is also very successful in painting portraits of those heroes: from molecular biologists studying SARS “with the instincts of a epidemiologist with the courage of a red-faced monkey”, to the ecologist with a passion for exotic oriental dishes, to the veterinary pathologist with “the tough and stern body of a The former rugby player has passed the age of 40. The historical details can be found in the book as well: 19th century scientists used optical microscopes to look for tiny organisms in the blood cells of malaria patients, while the virus continued to hide behind a veil of mystery until the invention of the electron microscope in the 1930s. Readers also see important historical milestones such as: President Hoover banned the import of parrots into the United States; an outbreak of arthritis and a rash, preceded by contact with deer ticks, in the town of Lyme in Connecticut; and a series of seemingly harmless, but actually deadly, cases in a series of male patients in the United States in the 1980s. Author David Quammen. (Source: Town Hall Seattle) David Quammen has carried us around the world, from the labs to the field with investigators – bat traps in China, monkeys in Bangladesh, deep into the jungles of Cameroon. Towards the end of the book, we’ll leave reality a little behind and embark on a fictional voyage to the origins of HIV along the Congo River. The author also asserts that the appearance of diseases transmitted from animals, pathogens that find us from other organisms, is not new, but is on the rise. He seeks to find the reason behind that phenomenon in the final chapter of the book: the huge population of humans, along with the immense amount of livestock, the destruction of natural habitats, damaged ecosystems. disruption – things that can completely turn into a debate about nature’s revenge on humanity. David Quammen is one of today’s most influential journalists and authors, a three-time US National Magazine Award recipient. His articles have been published in famous magazines such as National Geographic, New York Times, Rolling Stone and Harpers.

Giant water lilies in South America 2. Whale Shark: Whale sharks are the largest fish in the world, adults can be 20 meters long. Possessing huge weight but they are not harmful to humans. To see whale sharks, you can go to Gladden Spit marine reserve in Belize (Central America) from March to June every year, Ningaloo marine park in Australia from March to August, or Isla Holbox in Mexico from May to October. 3. Leatherback Sea Turtle: The Leatherback is the world’s largest tortoise and also an endangered species. When mature, they are about 2.5 m long and weigh 900 kg, looking like a small truck. To see this turtle, you can go to travelFlorida from March to July, on the Caribbean coast of Costa Rica from March to June and at the Shell Beach reserve in Guyana from March to August. 4. Eastern gorilla: The eastern gorilla (Gorilla beringei) is the largest and most endangered primate in the Red List. Compared to other gorillas, they are much larger with an average weight of 200 kg. They are found in the dense forests of the Democratic Republic of the Congo, Uganda and Rwanda. Another subspecies of them is the mountain gorilla found in Bwindi impregnable national park in Uganda. 5. African Elephant: The African elephant is the largest land animal in the world. Their body is 9.1 m long and weighs 7.5 tons. At birth, the baby elephant weighed 90 kg and was 1 m tall. Currently, the danger to African elephants is mainly from poaching for ivory. To see this species, you can go to travel Botswana (South Africa) – home to the largest number of elephants in the world (130,000 heads). In addition, many other countries in Africa such as Tanzania, South Africa, Gabon, Zambia… are also home to this species. 6. Rafflesia Flower: The rafflesia flower has huge red-dotted petals 1.2 m in diameter and an unpleasant smell of rotting flesh. However, this is characteristic of Sabah, Malaysia and Surat Thani province, Thailand. You can admire this exotic flower in the rainforests of Indonesia, Thailand, the Philippines and Malaysia… 7. Komodo Dragon: This world’s largest lizard retains the appearance of a prehistoric dinosaur. They average 3 m long and weigh 140 kg. The rare Komodo dragon is found only in Komodo National Park, a UNESCO World Heritage Site in Indonesia. 8. Red kangaroo: The red kangaroo is the largest marsupial in the world, as well as the largest animal on the Australian continent. As adults, they are 2 m tall and weigh 100 kg. The powerful hind legs allow them to jump 7 m high and move at a speed of 56 km / h. You can find red kangaroos in the arid regions of the continent in Australia, or in Mungo National Park. 9. Saltwater crocodile: This largest reptile in the world is an average of 6 meters long and weighs 1 ton. The swimming speed of this species is also terrible, up to 30 km / h, 3 times faster than the fastest athletes. Saltwater crocodiles can be found in Kakadu National Park and Nitmiluk National Park in Australia. In addition, when visiting many Southeast Asian countries and India, customers travel You can also see saltwater crocodiles. 10. Blue whale: The blue whale is the largest animal that has ever existed on Earth, far more than the dinosaurs in history. When adult blue whales reach a length of 33 m and weigh 200 tons, their heart alone is as heavy as a car. You can see this amazing animal off the coast of Trincomalee, Sri Lanka, from March to April, or in western Australia from May to December.

Now, the wild mountain gorilla (Gorilla beringei beringei) in Rwanda’s Volcanoes National Park has “confessed” to the scientists secretly beating their breasts. The research has been published in the journal Scientific Reports under Nature and led by Dr. Edward Wright of the Max Planck Institute of Evolutionary Anthropology in Germany. The mountain gorilla (Gorilla beringei beringei) is one of two eastern gorilla subspecies, comprising two populations. A population found in the Virunga volcano in Central Africa belongs to three national parks: Mgahinga, in southwestern Uganda; Volcanoes, in northwestern Rwanda; and Virunga in the eastern Democratic Republic of the Congo. The remainder was found in Bwindi Prohibited National Park in Uganda. Some primateists consider the Bwindi population a separate subspecies, although no complete description has been made. As of November 2012, an estimated total population of mountain gorillas was 880 individuals. From January 2014 to July 2016, researchers observed 25 wild male silver-backed gorillas overseen by the Dian Fossey Gorilla Fund International (Dian Fossey Gorilla Fund International), and recorded more. 500 chest beats. They recorded the chest pounding sounds of six of the gorillas, measured the rhythm and duration of each gorilla’s chest beat, and the frequency of the chest beating sounds. At the same time, they used the photographs to measure the shoulder widths of these gorillas to determine the sizes of different gorillas. Mountain gorilla. Mountain gorillas are descendants of monkeys and ancient apes found in Africa and Arab in the early Oligocene (34-24 million years ago). The fossil where the mountain gorilla lives is poor and its evolutionary history is unclear. About 9 million years ago, a group of primates evolved into gorillas, separated from their common ancestors with humans and chimpanzees; This is when genus Gorilla comes in. The mountain gorilla split from the eastern delta gorilla about 400,000 years ago and the two subspecies split from the eastern gorilla about 2 million years ago. There is much unresolved debate about the classification of mountain gorillas. The genus Gorilla was originally named Troglodytes in 1847, then renamed as it is today in 1852. By 1967 taxonomist Colin Groves proposed that all Gorilla genus consisted of only one species (Gorilla gorilla) with three Subspecies Gorilla gorilla gorilla (western plains gorilla), Gorilla gorilla graueri (delta gorilla found in western Virungas) and Gorilla gorilla beringei (mountain gorilla). In 2003, after review, gorillas were divided into two species (Gorilla gorilla and Gorilla beringei) by the International Union for Conservation of Nature (IUCN). After analyzing these measurement data, they found that “mountain gorillas can reliably transmit body shape information by beating their chest”. Specifically, large males will emit a lower frequency sound when they strike the chest. Researchers speculate that this may be related to their body’s large resonance cavity. Researchers also found that males beat their breasts more often during oestrus in female gorillas, so the sound of the chest beats could be an important body manifestation during flirting, a on the one hand, attracting children, and on the other hand, frightening the opponents. Interestingly, the beats and timing of these gorillas have nothing to do with body size, and not that the larger the size, the longer the beat. The chest beat of each gorilla is like a behavior showing the different personality, duration and frequency that will carry the characteristics of each individual. Researchers have analyzed that personalized beats could allow other gorillas to distinguish who was beating their chest from them. Mountain gorillas have been reported to have led to a threat of extinction due to poaching – mountain gorillas are often permanently injured by traps. hunt wild animals or take young individuals to zoos. Occupation – the rapid expansion of people’s settlements around the park’s safety corridor. Disease – mountain gorillas are regularly in contact with tour groups from all over the world, they can completely infect human infections. War, political turmoil – refugees flock to mountainous areas, cut trees and hunt gorillas for their meat for temporary life. Because of the above reasons, the World Animal Protection Organization and the host country authorities have increased patrols, using armed soldiers to remove traps, in addition to the work of determining the number of Gorillas mountain remaining. Expand the area of ​​the national park, require tour groups to stand away from monkeys, better manage this type of ecotourism. Another important part is educating local communities, spreading propaganda through materials and books and teaching students about biodiversity and protecting endangered animals. Ultimately, the scientists concluded that mountain gorillas live in dense rainforests, and sometimes they cannot see each other even when very close, but throbbing conveys personal information. it’s important for them to communicate.

Bright Side brings together 10 rare creatures that are on the brink of extinction. Global mountain gorilla Currently the mountain gorilla has increased to about 1,063. They can only be found in protected forests. This is evidence that conservation efforts can bring a species back on the brink of extinction. However, illegal human hunting remains a major threat to the fauna of Bwindi-Sarambwe. Sao la The saola species was discovered in the Annamite forests of Vietnam. The main threat to saola is hunting activities and environmental climate impacts. That is why many conservation organizations have collaborated to create a safe environment for them in nature. Animal with dunnart bag This tiny creature can only be found on Australia’s Kangaroo Island, with an estimated population of less than 500. The widespread cleaning of the vegetation by humans has put the dunnart in a very dangerous situation. In addition, wildfires in Australia in 2019 and 2020 have burned 95% of the species. That is why a closed sanctuary was created to keep dunnart and other endangered species safe. Iberian lynx This rare species can only be found in the jungles of southwest Spain. From 1985 to 2001, their population decreased by 87%; So far, there are about 400 lynx in the wild. Their natural habitat continues to be destroyed by new highways and cut down trees. Black-footed ferret While people thought they were extinct, tiny creatures have proven to still exist. However, their population is rapidly declining due to disease and the loss of their natural habitat. Their total population is estimated at around 370 in the wild. Massive restoration efforts by many federal agencies and zoos have provided space for the weasels to survive. Gharial crocodile In 2010, only 15 crocodiles were found in the Gandak River in Bihar. That’s why in 2014, a conservation initiative freed 30 crocodiles from captivity and returned them to the river, and their population began to increase. Kakapo For the first time in 70 years, the kakapo population is increasing with about 213 species of birds existing. Only during the 2018-2019 breeding season, 71 young survived, which is a record number for this species. The recovery team tries to make sure the birds stay healthy and protected from infection. Their next goal is to find a good habitat for the birds as disease is their main threat. Canadian harbor seals Found in Quebec, this is the only species of its kind that can only survive in fresh water thanks to fish. To date, only more than 100 live in the area. The cause can be attributed to human hunting. Also, in many cases, seals get trapped in their gears and cannot free themselves. Leopard Amur This leopard has found a way to survive in the jungle in the Russian Far East. They live up to 15 years in the wild and more than 20 years in captivity. They have an amazing ability to run very fast and jump high. However, the loss of habitat and human activity has reduced their number to about 84 individuals. Vaquita dolphin This very rare marine mammal was discovered only in 1958. However, in recent years, vaquitas dolphins have been victims of illegal fishing activities. They are often trapped in fishing nets. That is why their population is only about 10 in the Gulf of Mexico. They can be found in shallow water but will quickly swim away if a boat approaches them.

Chest patting is a means of communication However, recently a new study has revealed that gorilla clapping behavior is not quite as we know it. Research published in the journal Scientific Reports concluded that gorilla clapping was in fact a means of non-verbal communication that “encoded” their competitiveness instead of boasting of strength. The gorilla clapping itself represents an interesting kind of communication unlike a human. It is not really a voice but an act of inclination to show off visible and audible physical strength. To draw conclusions, the researchers sought to record the sound of the chest beating using photometry. With this method, scientists do not need to get close to the gorilla because the extremely powerful male monkeys pose many dangers in Volcanoes National Park, Rwanda. However, even using photometry, scientists still need to be in the right place and at the right time to catch chest beats from gorillas. The results showed that sounds had lower frequencies in large male mountain gorillas, while younger males had higher frequency sounds. Where low-frequency sounds travel further than high-frequency sounds, which means that larger males can be more formidable competitors. This is useful for males of similar or smaller size who can use the information to decide if it is worthwhile against the competitor or to step back. In previous research conducted by the same group of researchers found that the larger male mountain gorillas not only were socially dominant, they were also more likely to reproduce successfully than the offspring. the male is smaller. With female monkeys, they will also collect information from the male monkey’s chest pounding sound to decide on a worthy mate. “The gorilla’s chest banging is one of the iconic sounds of the animal kingdom, so it’s great that we can prove that gorilla’s body size has been encoded in the displays. This spectacular performance, “said Edward Wright, author of the study from the Planck Institute of Evolutionary Anthropology. Critically endangered species on the Red List Gorilla is a genus of primates belonging to the family of humans, herbivores living in the jungles of Africa, the largest of the extant primates. Gorillas are divided into two species (there can be 4 to 5 more subspecies). The DNA of the gorilla is the same as that of humans 98% -99%. They are very closely related to humans after only 2 species of chimpanzees. This primate has a massive body. Gorillas are 1.7–2 m tall when standing upright and weigh 180–200 kg. These animals usually walk on all fours, although they can stand on two legs. Gorilla lives in the tropical and subtropical forests of Africa. Gorillas move with their knuckles, although they can sometimes stand upright with food or on defense. Wild adult gorillas weigh 135 to 180 kg (298 to 397 lb) while females are usually half as much as 68–113 kg (150–249 lb) males. Adult males are 1.7 to 1.8 m (5.6 to 5.9 ft) tall, with an arm span of 2.3 to 2.6 m (7.5 to 8.5 ft). Females have a shorter arm span. The adult male gorilla is known as the “silver back” due to the silver hair on its back. Occasionally, a silverback greater than 1.8 meters and 230 kg is recorded in the wild. The obese gorilla in captivity 270 kg. Gorillas live in groups under the command of the strongest and most powerful male. It is the male’s duty to lead and protect the whole herd from being attacked by wild animals. The gorilla’s most dangerous enemy is the very ferocious leopard. When threatened, the male will stand upright and pound his stomach with two hands to warn him before fighting. The gorilla is known as a powerful beast with a large appearance, much stronger than a human, powerful and intelligent hands and a gorilla punch that can make everything facing a deformation. . Despite its massive and massive body, Gorilla has an average running speed of about 40 km / h. All species (and subspecies) of the gorilla are listed as Critically Endangered on the IUCN Red List. Now, more than 100,000 western lowland gorillas are thought to exist in the wild, with 4,000 in zoos; The eastern lowland gorilla has a population of less than 5,000 in the wild and 24 in the zoo. The mountain gorilla is the most endangered species, with an estimated population of 880 remaining in the wild and no species in the zoo.

Now, the wild mountain gorilla (Gorilla beringei beringei) in Rwanda’s Volcanoes National Park has “confessed” to the scientists secretly beating their breasts.

The research has been published in the journal Scientific Reports under Nature and led by Dr. Edward Wright of the Max Planck Institute of Evolutionary Anthropology in Germany.

The mountain gorilla (Gorilla beringei beringei) is one of two eastern gorilla subspecies, comprising two populations. A population found in the Virunga volcano in Central Africa belongs to three national parks: Mgahinga, in southwestern Uganda; Volcanoes, in northwestern Rwanda; and Virunga in the eastern Democratic Republic of the Congo. The remainder was found in Bwindi Prohibited National Park in Uganda. Some primateists consider the Bwindi population a separate subspecies, although no complete description has been made. As of November 2012, an estimated total population of mountain gorillas was 880 individuals.

From January 2014 to July 2016, researchers observed 25 wild male silver-backed gorillas overseen by the Dian Fossey Gorilla Fund International (Dian Fossey Gorilla Fund International), and recorded more. 500 chest beats.

They recorded the chest beating sounds of six of the gorillas, measured the rhythm and duration of each gorilla’s chest beat, and the frequency of the chest beating sounds. At the same time, they used the photographs to measure the shoulder widths of these gorillas to determine the sizes of different gorillas.

Mountain gorillas are descendants of monkeys and ancient apes found in Africa and Arab in the early Oligocene (34-24 million years ago). The fossil where the mountain gorilla lives is poor and its evolutionary history is unclear. About 9 million years ago, a group of primates evolved into gorillas, separated from their common ancestors with humans and chimpanzees; This is when genus Gorilla comes in. The mountain gorilla split from the eastern delta gorilla about 400,000 years ago and the two subspecies split from the eastern gorilla about 2 million years ago. There is much unresolved debate about the classification of mountain gorillas. The genus Gorilla was originally named Troglodytes in 1847, then renamed as it is today in 1852. By 1967 taxonomist Colin Groves proposed that all Gorilla genus consisted of only one species (Gorilla gorilla) with three Subspecies Gorilla gorilla gorilla (western plains gorilla), Gorilla gorilla graueri (delta gorilla found in western Virungas) and Gorilla gorilla beringei (mountain gorilla). In 2003, after review, gorillas were divided into two species (Gorilla gorilla and Gorilla beringei) by the International Union for Conservation of Nature (IUCN).

After analyzing these measurement data, they found that “mountain gorillas can reliably transmit body shape information by beating their chest”. Specifically, large males will emit a lower frequency sound when they strike the chest. Researchers speculate that this may be related to their body’s large resonance cavity.

Researchers also found that males pound their breasts more often during oestrus in female gorillas, so the sound of the chest beats can be an important physical manifestation during flirting, a on the one hand, attracting children, and on the other hand, frightening the opponents.

Interestingly, the beats and timing of these gorillas have nothing to do with body size, and not that the larger the size, the longer the beat. The chest beat of each gorilla is like a behavior showing the different personality, duration and frequency that will carry the characteristics of each individual. Researchers have analyzed that personalized beats could allow other gorillas to distinguish who was beating their chest from them.

Mountain gorillas have been reported to have led to a threat of extinction due to poaching – mountain gorillas are often permanently injured by traps. hunt wild animals or take young individuals to zoos. Occupation – the rapid expansion of people’s settlements around the park’s safety corridor. Disease – mountain gorillas are regularly in contact with tour groups from all over the world, they can completely infect human infections. War, political turmoil – refugees flock to mountainous areas, cut trees and hunt gorillas for their meat for temporary life. Because of the above reasons, the World Animal Protection Organization and the host country government have increased patrols, using armed soldiers to remove traps, in addition to the work of determining the number of Gorillas mountain remaining. Expand the area of ​​the national park, require tour groups to stand away from monkeys, better manage this type of ecotourism. Another important part is educating the local community, spreading propaganda through materials and books and teaching students about biodiversity and protecting this endangered animal.

Ultimately, the scientists concluded that mountain gorillas live in dense rainforests, and sometimes they cannot see each other even when very close, but throbbing conveys personal information. it’s important for them to communicate.