Noon, the sun shines through the forest canopy and falls down the waterfalls. Cool fish from the cave swims in groups to eat algae. Where the sun shines, they swim along. After carefully targeting the place to drop the net, Old Deep took off his shirt and jumped into the water. At nearly 60 years old, his arm span is still very strong. Less than ten minutes, the net, about 20 meters long, was released, close to the shore, blocking the doors of the rock caves that he knew there were cool fish hiding inside. Cool fishing in the upstream of A Tang stream Elder Sau said that the cool fish were very smart. When they saw the cave, they swim right into the cave to hide. When they feel really safe, they swim out. Therefore, after “staging” with a net, he cut down a long bamboo tree to kick the fish out of the cave. Deep cave, you have to dive, use trees to scare away. Fish panicked, swimming out of the cave, they met the net and got caught right away. While his father caught fish with the net, Mr. Chang wore diving glasses and slipped into each cave to find cool fish. “Cool fish entering the rock cave usually stand still, very easy to shoot. Every day, the familiar crossbow shooter will earn a few kilograms of cool fish” – Mr. Chang affirmed. That day, the father and son of worm hunted more than 1 kg of cool fish. According to Old Deep, there is still a lot of cool fish here because people do not use electric pulses and explosives to catch. Moreover, every time people go down to the stream, they only catch enough for their meal, they catch the big ones, not the “upper golden lower bran” style. On the way back to the village, Mr. Chang picked a handful of leaves that grow a lot in A Tang stream. He said that sour leaves are very suitable for cool fish, cook soup to fill up the water, and eat it very well. If the soup is not cooked, then grilled, steamed onions, and braised. Freshly grilled fish and then hung up in the kitchen guard. Then, crushing fish with salt, dried chili, galangal, and pepper will create a very unique dipping dish. The people here call it cheo. Cool fish is often used to dot with rice, sticky rice, meat, and wild vegetables and is often given to guests from far away.

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.