Shirako is the common name of a Japanese specialty dish made from the sperm sacs of cod and some other marine fish. In other words, it is the male fish testicle. Usually served with rice or eaten separately in a deep-fried way, shirako is really popular in Japan. Especially Japanese men, with the belief that “you can eat whatever you eat”, they love this dish from fish testicles with soft texture and mild fatty flavor with a hint of the sea. There are many people who are averse to this Japanese specialty dish and the initial feeling when tasting a piece of shiroka will certainly be a bit creepy, but after that, most people will be conquered by the unique taste of shiroka. instant food. According to many culinary experts, the taste and texture of shirako resembles melted cream cheese. Many people who are used to eating shirako will choose to eat it raw, with green onions and lemon, and dipping sauce. The taste is soft like butter, a bit fishy and salty but not too thick, this dish attracts right from the first bite. However, for many newcomers who want to enjoy this specialty dish, this is not an ideal choice. Should choose shirako added to soups and some other dishes or cooked with kimchi mushrooms, radish. Thus, the light fishy taste of shirako will help the dishes have more emphasis and uniqueness. The ingredients commonly used by the Japanese for this dish are the testicles of cod and puffer fish. In particular, cod testicles are the most popular because the taste of this fish makes the dish more complete. Puffer fish was also chosen because it is an easy fish to find and is popular in Japan. Another small note is that if you want to enjoy this dish with the most perfect taste, choose the winter time, around December. At this time, the cod and puffer fish come to the breeding period, so the quality of the crystal is high. Complete is also better.

Puffer fish is one of the poisonous fish and can take the life of diners. However, in Japan this fish is still popular. Photo: byFood. Even puffer fish is an expensive specialty that not everyone can afford to enjoy. Photo: Kokoro Media. In the puffer fish, the toxin-causing substance Tetrodotoxin is stronger than cyanide. The poison of the puffer fish can kill up to 30 people. After eating it for about 20 minutes, diners may experience symptoms such as nausea, dizziness, stomach pain, muscle paralysis, cardiac arrest. Photo: 8chan.se There are 120 species of puffer fish in the world. In Japan, the government has allowed restaurants to use 20/120 species of puffer fish to prepare dishes. Photo: Internet However, not all restaurants serve puffer fish. Only chefs who are certified by the Government can cook. Parts of fish after preliminary processing must also be destroyed. Photo: Internet Tiger puffer Takifugu rubripes is the most famous puffer fish dish in Japan. This type of fish is auctioned right at the fish market instead of selling it in bulk. Photo: Wiki. In the high season, this type of puffer fish can be up to 265 USD/kg (more than 6 million VND). Even the price of puffer fish is increasing day by day due to overfishing. Photo: Internet During processing, the fins and mouth of the fish are removed, followed by the skinning and handling of the internal organs. The non-poisonous fish meat is separated and after a few cuts, they become the famous sashimi. The dish has a delicate, fresh taste, completely different from other sashimi dishes, so despite the danger many diners still want to enjoy it. Video: Adding a Japanese retail giant to Vietnam. Source: VTV24

Dolphins evolved from a terrestrial animal Dolphins evolved from a terrestrial animal Dolphins are mammals, closely related to whales, often living in the shallow seas of the continental shelf. Dolphins have the ability to understand simple human behavioral language. With their inherent magical ability, dolphins can understand and organize common objects into groups together. They understand both sounds and images, and even respond to images just like humans. Explaining this, scientists have confirmed that dolphins are the most intelligent animals in the world (while humans are only third in intelligence). Millions of years ago, the ancestor of the dolphin did not swim in the water as we know it today, but was a carnivore that lived entirely on land. However, about 50 million years ago, a mysterious event happened that forced them to adapt to the underwater environment, and gradually evolved into a mammal like today. Although they are considered extremely friendly animals, dolphins also have creepy habits, typically juggling their young out of the sea. This sounds like a very funny joke, but in reality, it is one of the ways adult males are killing their young so their mothers can return to mating. Dolphins can’t sleep for weeks at a time A recently published study has revealed the surprising ability of dolphins: They can stay awake for days or weeks at a time without sleep. So how can they survive without sleep? Dolphins possess a very special sleep mechanism, they can let half of their brain rest at a certain time while the other half is still awake – a process called “Unihemispheric sleep”. This special sleeping mechanism not only keeps dolphins from drowning, but also allows them to stay alert to any danger and even encourages brain development. Most dolphins don’t chew their food Dolphins do not chew food, or rather they cannot chew. Dolphin’s teeth are developed for the purpose of gripping prey. Sometimes they will shake or rub the food on the ocean floor to tear it into smaller pieces that are easier to swallow. One theory is that dolphins’ prey are mainly small fish, and they need to quickly grab the prey in their mouth before their meal can swim away. Skip the chewing process to make sure the prey can’t escape. Dolphins call each other by their own names, forming friendships through shared interests Researchers from the Universities of Bristol, Zurich and Western Australia have found that dolphins living in the Shark Bay area form friendships based on shared interests – in this case, the habit of using foam. sea ​​to hunt. This tool-using trait is found mainly in female dolphins, but by studying the behavior of a few expressed male dolphins, researchers have found a new discovery: The relationship of dolphins is formed through general tooling techniques. Dolphins have their own names and they will respond when called. Dolphins in each population possess their own “characteristic whistle”, just like a name, and other dolphins can use that distinctive whistle to get the attention of their mates. In fact, dolphins are also an extremely social species. The discovery opens up entirely new questions about how dolphins communicate and their “vocabulary,” and may reveal clues about the evolution of our own language skills. Dolphins use prey’s toxins as ‘addicts’ We know that puffer fish have strong toxins. Apparently dolphins know this too, but they use it for ‘high’ purposes. Usually, the puffer fish toxin is deadly. However, in small doses, it can act as a narcotic. The BBC once filmed a video in which dolphins gently play with a puffer fish for 20 to 30 minutes, then hang around and behave “weird”. Dolphins possess great “teamwork” ability A team of researchers from the University of Bristol recently discovered that male dolphins can work and work together as a team – an attribute previously thought to be unique to humans. Observing the behavior of male dolphins as they coordinated courtship with female pigs, the researchers saw cooperation rather than competitive behavior, which is particularly unusual in mate-finding in the animal kingdom.

Dolphins evolved from a species of terrestrial animal Dolphins evolved from a species of terrestrial animal Dolphins are mammals, closely related to whales, often living in shallow seas on the continental shelf. Dolphins have the ability to understand simple human behavioral language. With their inherent magical abilities, dolphins can understand and organize common objects into a group together. They understand both sounds and images, and even reflect images that are no different from people. Explaining this, scientists have confirmed that dolphins are the most intelligent animals in the world (while humans are only third in intelligence). Millions of years ago, the ancestors of dolphins did not swim underwater as we know them today, but were a predator that lived entirely on land. However, about 50 million years ago, a mysterious event happened that forced them to adapt to the aquatic environment, and gradually evolved into a species of mammal today. Although considered an extremely friendly animal, dolphins also have creepy behaviors, typically juggling young animals out of the sea. It sounds like a very interesting joke, but in fact, it is one of the ways the adult male is killing the young so that their mother can return to mating. Dolphins may not sleep for many weeks A recently published study has shown a surprising ability of dolphins: Can stay awake for days or weeks continuously without sleep. So how can they survive without sleep? Dolphins have a very special sleep mechanism, they can give half of their brain a rest at a certain time when the other half is awake – a process called “Unihemispheric sleep”. This special sleep mechanism not only prevents dolphins from drowning, but also allows them to stay alert to any danger and even encourage brain development. Most dolphins do not chew their food Dolphins do not chew food, or rather they cannot. A dolphin’s teeth are developed for the purpose of gripping prey. Sometimes they will shake or rub food on the ocean floor to tear them into small pieces to make them easier to swallow. One theory is that dolphins’ prey is mainly small fish, and they need to quickly grab prey in their mouth before their meal can swim away. Skip the chewing process to make sure the prey doesn’t escape. Dolphins call each other by their own names, forming friendships through common interests Researchers from the Universities of Bristol, Zurich and Western Australia have found that dolphins living in the Shark Bay area form friendships based on shared interest – in this case, a habit of using foam. sea ​​for prey. This tool-use trait is found mainly in female dolphins, but by studying the behavior of a few male dolphins that exhibit expression, the researchers have found a new discovery: Dolphin’s are formed through general tooling techniques. Dolphins have a given name and they will respond when called. Dolphins in each population possess their own “signature whistling”, as a name and other dolphins can use that particular whistle to get their partner’s attention. In fact, dolphins are also an extremely social species. This finding opens up entirely new questions about dolphins’ communication levels and “vocabulary”, and may reveal clues about our own evolution of language skills. Dolphins use their prey toxins as “addictive substances”. We know that puffer fish are highly toxic. Obviously dolphins know this too, but they use it for “high”. Usually, the puffer fish toxin is lethal. However, in small doses, it can act as an addictive substance. The BBC has recorded a video in which dolphins gently play with a puffer fish for 20 to 30 minutes, then hang around without leaving and behave “strange”. Dolphins possess great “teamwork” ability A team of researchers from the University of Bristol recently discovered that male dolphins can work and work together as a team – an attribute previously thought to be unique to humans. Observing the behavior of male dolphins when they were coordinating flirting with female pigs, the researchers found cooperation rather than competitive behavior, which is especially unusual in finding a mate in the animal kingdom.

According to information from Bach Mai Hospital (Hanoi), Dr. Nguyen Trung Nguyen, Director of the Poison Control Center, said that there are at least 3 types of poisonous crabs: demon-faced crab, seed crab and Florida crab. father in the waters of Central Vietnam, Nha Trang and some other places. Recently, the Institute of Oceanography, Vietnam Academy of Science and Technology, also confirmed that the man in Thanh Hoa was poisoned after eating crab. This type of crab has a very high toxicity, very easily fatal when eaten. Dr. Nguyen said that the crab poisoning progress is very fast, it can appear after eating within a few hours. Many patients eat at sea, on ships, on islands, get poisoned and when they are brought ashore, they cannot be treated in time. Even many cases died on the way to the hospital. Devil-faced crab Devil face crab, scientific name is Zosimus aeneus, is one of the poisonous crab species living in Vietnamese waters, there are many from Da Nang to Vung Tau. Devil-faced crabs are often hidden in shallow, low-tide areas. They have the same color as coral, so it is difficult to identify. According to information from Nha Trang Institute of Oceanography, the devil face crab has the widest chest shell of nearly 90 mm, about 55 mm long. Crab shell has many flat convex, eye-catching colors, unlike food sea crabs. Devil-faced crabs are blue-green with white, brown, and yellow markings. The legs and legs of the crab are dark brown. The crab’s meat, eggs and claws contain the same toxins in pufferfish as saxitoxin, neurotoxin and tetrodotoxin. The poisonous crabs poisonous crabs formed by the main food source are the algae in the coral reef. These substances cause paralysis of the nervous system, inhibiting respiration. This is a very powerful toxin to the nervous system, just 0.5 mg can be fatal for adults. Devil-faced crabs can be fatal when ingested. Photo: Sciencesource. Crab fan This crab species has the scientific name Demania reynaudii of the family Xanthidae (the Xanthid reef crab). According to the literature, the fan crab is a crustacean, benthic, common in coral reefs in the tropical Indo-Pacific. Currently, scientists have identified nearly 300 species of crabs living in the sea, some of which contain the toxin saxitoxin or tetrodotoxin. These are 2 toxins that cause poisoning and death if ingested. According to Associate Professor, Dr. Dao Viet Ha, Director of Institute of Oceanography, Vietnam Academy of Science and Technology, tetrodotoxin is heat-stable and acid-stable so it does not decompose at high temperature when cooking. nine. It can even exist in processed, frozen, canned products. This toxin can affect the central nervous system of humans and higher animals, stopping the transmission of nerve signals. Symptoms of poisoning usually appear about 30 minutes after eating, including tongue numbness, lip numbness, dizziness, headache, abdominal cramps, nausea, vomiting, difficulty speaking, difficulty swallowing, movement imbalance. .. In severe cases, the victim has seizures, froth, coma and death. Demania renaudii fan crab specimen collected from food poisoning in Thanh Hoa on March 27. Photo: Truong Si Hai Trinh. Crab seeds The seed crab (Platypodia granulosa) is just as poisonous as the demon face crab. Crab seeds have oval body. Their nipple shells are semi-circular, the longest about 30 mm, the widest about 40 mm, covered with granular convex tumors. Raw crabs are yellowish-green in color, sometimes yellowish-brown or purplish-red in color. The knuckles are black in color. The seed crab is usually found on living coral reefs, at a depth of about 3 m, at Hon Tam – Nha Trang. They are sometimes mistaken for the common Florida crab (Atergatis floridus). Crab Florida According to the National Institutes of Medicine (NIH), this crab has the scientific name Atergastis floridus. They have an oval body, relatively narrow shell, smooth surface, smooth back. The whole crab body is brown to dark brown in color, with large yellow spots on the back. The Florida crab has a nipple shell that is almost like a horizontal ellipse. The back surface of the crab shell is slightly convex but smooth, making it difficult to identify areas. The toes are dark colored. The crabs are of large, equal and smooth size with a black spoon-shaped head. Male crabs are usually larger than females. The crab shell has a square shape, is quite thick and has a width of 8-10 cm. Florida crabs are usually more active at night. Atergatis floridus occurs in the eastern Indian Ocean, Southeast Asia, Australia, and the western Pacific. According to the Western Australian Museum, The meat of the crab Florida, like many related crabs from the Xanthidae family, is very poisonous. The toxins in this crab species such as tetrodotoxin and saxitoxin are produced by vibrio-like bacteria that live in symbiosis on crabs. These toxins, similar to puffer fish, are a major factor in poisoning cases in shellfish.