But few people know that Cambodia also has an extremely beautiful pearl island, dubbed the “Forgotten Paradise”. The place to be mentioned is Koh Rong Island in Sihanoukville, where visitors will not have to spend thousands of dollars to visit a sea paradise like the Maldives, but can still watch the shimmering of the blue sea and golden sunshine. (Photo: Phuotvivu) Located about 20 km from Sihanoukville city, Koh Rong is an island located in the Gulf of Thailand. It takes about 2 hours from the mainland to the island. Seen from afar, the jade-green sea with white sand stretches along with the extremely romantic sky. Adding to the beauty of the island is the dark green color of the tropical rainforest, creating a fresh, free space with heaven and earth. In contrast to the vibrant Sihanoukville, Koh Rong is really a wild and quiet paradise that makes visitors from far away fall in love as soon as they arrive. (Photo: Visitkohrong) (Photo: Divui) The primeval forests and animals on the island are planned by experts from France and Russia for tourism. You can easily book a snorkeling tour to explore the beautiful coral reefs or rent a boat from local fishermen to experience the near-shore fishing trip, the feeling of floating on the sea. But the most special thing that this island possesses is a rare natural phenomenon called the phosphorescent sea. Most visitors come to Koh Rong just to get this unique experience. (Photo: Go Cambodia) These phosphorescent spots are caused by glowing plankton that emit pale cyanide when under pressure, creating one of the most magical glowing spectacles on the planet with its sparkling beaches. This species grows very quickly as the amount of nitrogen and phosphorus released by humans into the sea increases. Many people liken these plankton to sea fireflies. If fireflies crept in the forests creating a dreamlike scene like being lost in a wonderland, these plankton also sparkle in the middle of the sea like a galaxy under the water. (Photo: Visitkohrong) (Photo: Colourbox/P.Grebekin) To admire this sight, you just need to go to the darkest side of the beach during the night and jump into the water. Since the plankton starts to light up when you hit the water, use your hands and feet to whirl the water. The longer you do that, the more the plankton in the water will sparkle. Your every move, every move is a different galaxy with many shapes drawn by you. They are not fixed but constantly change according to the body. It feels like whether in the sky or in the water is a magical sparkling starry sky that makes anyone excited and ecstatic.

This species of snail is called Clusterwink, they are often found in clusters of snails stuck on rocky shores on Australian beaches. This snail is considered the strangest snail in the world because they can emit light on their own. Unlike land snails that secrete luminescent mucus, Clusterwink snails are bioluminescent based on a chemical reaction inside their bodies. When any creature touches it, it emits a green flashing light Until now, the ability of the Clusterwink snail to glow is still a mystery to scientists. They hypothesized that this could be a tool to help them raise alarms, communicate with their fellow humans, or frighten enemies Fireflies or glow bugs are small beetles collectively known as the family Fireflies that are luminescent. Fireflies are typical of temperate regions, although most species live in tropical and subtropical regions Fireflies are divided into two groups: flying fireflies and fireflies crawling on the ground. Both of these groups can emit the same special cold light, which does not radiate heat like artificial light The light of fireflies is emitted from the last few segments of the abdomen. During the day, these nodes are only gray-white in color, at night they emit subtle light through the transparent skin, with reflective cells that have the function of reflecting light out. Plankton occurs in most of the world’s beaches, especially in the Maldives. They emit a blue light, and tend to glow more strongly in the presence of waves This luminescent light acts as a signal to scare away enemies with color, an implicit warning to the enemy. On the other hand, it also distracts the enemy, distracting the enemy, the plankton uses that opportunity to escape. In addition, according to scientists, bioluminescent plankton is a signal to attract and support larger organisms to hunt copepods – enemies of plankton. Atolla jellyfish live in the depths of the ocean. They have 22 tentacles, one of which is larger than the others and is used to catch prey, this jellyfish is known as the “moving lamp” of the sea. Unlike many other jellyfish, the Atolla jellyfish when attacked will immediately glow brightly. The light it emits can illuminate as far as 91.44m At that time, larger species will be attracted to this light and rush to it. Then the hunter becomes the prey again and the jellyfish will take this opportunity to escape Atolla jellyfish often use tentacles to catch prey. When the prey has been captured by the tentacles, they swing back and forth until the prey has no resistance and then enjoy. The anglerfish, also known as anglerfish – literally “fishing rod fish”, this fish has a fleshy nodule that grows from the head to become a luminous organ that functions as a bait During hunting, this part of the fin will glow, making the fish around it attracted. After that, their job is just to open their large mouth and take the whole prey into their stomach It is known that Anglerfish are considered the “demon” of the ocean floor because they have extremely ugly but extremely sharp teeth, this fish often lives in the deep sea, without light. In the forests of some Asian countries, including Vietnam, people still often encounter glowing mushrooms. This mushroom has the scientific name Omphalotus nidiformis but is often referred to as the “ghost mushroom”. Ghost mushroom is considered a poisonous mushroom that contains illudin compound – a luminescent substance or phosphorous substance that causes poisoning to humans when ingested. Mushroom poisonings often occur in the winter and spring, when fungi grow and develop. Therefore, people absolutely should not go to the forest to pick wild mushrooms to eat Geckos are a famous creature, known to many people because they have the ability to change color continuously according to the season and weather. However, very few people know that, under ultraviolet light, the bones of many chameleon species are also capable of emitting fluorescent light. This strange millipede is a millipede, scientifically known as Motyxia sequoia. Scientists think this millipede evolved a way to glow in the dark to cope with the stress of life when living in a hot, dry environment. In addition to stress relief, the blue light emitted by the Motyxia sequoiae mat also warns predators that they may spew out cyanide. When the light this millipede emits is not enough to ward off danger, they also ooze toxic cyanide and foul odors from their small feet. This millipede is blind, so they cannot attract each other with light, nor do they use light to attract prey. The ability to glow is just an odd defense mechanism of this creature

1. Which of the following countries has more than 10,000 beaches? Icon Australia Icon Brother Icon France The correct answer is answer A: On August 1, 1994, Australia declared an exclusive economic zone extending to 200 nautical miles from its territorial coastline from the original 12 nautical miles. The area of ​​the sea expands up to 8,505,348 square kilometers. With nearly 50,000 kilometers of coastline, Australia has around 10,000 amazing beaches, more than any other country in the world. The beaches are always favored by nature, each with its own nuance. Located on the Indo-Australian plate, surrounded by the Indian and Pacific Oceans, the land of kangaroos not only has a large land but also owns many attractive tourist destinations. Among them is the Great Barrier Reef (Dai Bao Bao) stretching on the Queensland coast. Great Ocean Road, Australia’s most beautiful coastal road, where nature seems to have bestowed everything necessary and just a little more human intelligence to turn it into an eternal heritage. This is home to the world’s largest coral system and also the longest marine park with coral reefs and colorful creatures like an underwater kaleidoscope. 2. How many places is this country in the world? Icon Wednesday Icon Thursday Icon Friday The correct answer is answer C: With a natural area of ​​about 7.7 million square kilometers, Australia is a country with a natural area accounting for 89% of the area of ​​Oceania, ranked 6th in the world, after the Federation Russia, Canada, China, USA, Brazil. 3. Where in Australia is recognized as a “World Cultural City”? Icon Melbourne Icon Sydney Icon Canberra The correct answer is A: Melbourne is a city recognized by UNESCO as a “World Cultural City”. This is one of Australia’s most famous centers for fashion, sport and culture. A true walking city, modern but full of simplicity, street artists, wide sidewalks never occupied or ancient two-horse carriages transporting tourists everywhere… 4. Which country owns the longest sea route in the world? Icon Brother Icon Canada Icon France The correct answer is answer B: According to the CIA World Factbook, Canada owns the longest sea lane in the world with a length of more than 202,000 km. Adjacent to 3 oceans, Canada has beautiful beaches, famous for attracting tourists such as Greenwich, Kluane, Manitou… 5. Why does Kilauea beach (Hawaii, USA) have black sand? Icon High salt content in the sea Icon Volcanic ash formed Icon Many strange sea creatures The correct answer is answer B: The Hawaiian Islands (USA) are famous for the most attractive sea paradises on the planet. However, Hawaii is home to many active volcanoes, including Mount Kilauea. Kilauea Beach near the active volcano of the same name possesses a unique black sand beach formed by ash from eruptions. 6. Which Mexican beach is called the beach of the dead? Icon Marieta islands beach (Mexico) Icon Playa Zipolite Beach (Mexico) The correct answer is answer B: According to the Telegraph, Playa Zipolite beach has the word “Zipolite” in the indigenous Nahuatl language meaning “the beach of the dead”. This location is one of the famous nude beaches in Mexico. However, this place is also considered a dangerous tourist area because the Playa Zipolite Sea often appears dangerous currents. 7. In which country is the world famous “Dragon Egg Beach” for its unique round rocks? Icon Mexico Icon Canada Icon New Zealand The correct answer is answer C: New Zealand has always been known as “the land of wonderland” or “the land of God”, which possesses a lot of wild, pristine and natural landscapes. mysterious part. Therefore, it is not surprising that the dragon egg beach – a unique place in the world is also among them. Located in the beautiful country of New Zealand, the Moeraki coast has become famous worldwide for its unique round rocks. Instead of long sharp rocks, the Moeraki stones are spherical and unusually large in size, just like the dragon eggs in European fairy tales. These rocks are often scattered far apart or concentrated in clusters, along the wave shelf of the New Zealand coast between Moeraki and Hampden. 8. The sea of ​​stars (glowing sea) is created by a pigment and enzyme called what? Icon Luciferase Icon Phycoerythrin Icon Blue-green algae The correct answer is answer A: The beauty of the glowing beach on Vaadhoo Island is likened to a natural wonder in the Maldives paradise. The phenomenon of glowing beach is an extremely magical phenomenon, making visitors not believe their eyes. Create a surprising surprise for visitors. It is like the shimmering galaxy in sci-fi movies or the magnificent river of fireflies in the old European myths. The sea of ​​stars (also known as the glowing sea) is located in the Maldives archipelago, on the island of Honsu (Japan). This place is famous for its beautiful shimmering blue waves. It is known that their light is produced by a pigment and enzyme called luciferase. When they react with oxygen, they produce light. The concentration of plankton with a high density of plankton makes the beach glow especially on moonless nights. The reason for this phenomenon is because the sea has many sterile species and plankton. capable of bioluminescence. When the waves hit and the shore and disturb them, they will create waves with beautiful luminous luminous colors. 9. Kaihalulu Beach is especially noticed by tourists because of its sandy shore. Icon The sand is as red as blood Icon Purple sand beach Icon The sandy shore is yellow The correct answer is answer A: Located in the resort paradise of Hawaii, Kaihalulu beach is especially noticed by tourists because of its blood-red sand. Those who love red and love to swim can choose to go to Kaihalulu beach in Hawaii, or Rabida island in the Galapagos Islands. The sand on these beaches has a beautiful red color, mainly due to the presence of large amounts of iron from volcanic lava flows that erupted thousands of years ago. This is considered a land containing a lot of iron ore, so the amount of sea sand here is also dark red. 10. How many countries is the Black Sea surrounded by? Icon 4 countries including Turkey, Ukraine, Russia, Georgia Icon 5 countries including Turkey, Greece, Russia, Serbia, Georgia Icon 6 countries including Turkey, Bulgaria, Romania, Ukraine, Russia and Georgia The correct answer is answer C: The Black Sea is an inland sea, adjacent to 6 countries including Turkey, Bulgaria, Romania, Ukraine, Russia and Georgia. Located in a special position, the Black Sea is close to world famous big cities such as Istanbul (Turkey), Sochi (Russia)… that’s why this place is always attractive to tourists. Result Please work harder! point

Towards the end of this century, organisms living on the ocean floor faced increasing dangers from ocean warming. (Photo: thiennhien.net) According to climate warming projections, the number of species has decreased in the equator and increased in the subtropics since the 1950s. This is the general state of all 48,661 species and they are divided into sub-species. seabed (benthic) and in open water (floating fish area), fish, molluscs and crustaceans. Results from a study led by the University of Auckland (New Zealand) show that open water marine species in the Northern Hemisphere tend to move more towards the North Pole than benthic species. Meanwhile, species in the southern hemisphere do not have a similar wave of movement. The reason is that the warming ocean in the Northern Hemisphere is more pronounced than the Southern Hemisphere. In the past, the tropics were always considered to be stable and have an ideal temperature for reproduction because so many species of organisms appear there. Now the defined tropics are not so stable and are becoming too hot for many species. This study is the result of doctoral work by lead author Chhaya Chaudhary at the University of Auckland and builds on a series of studies in a joint research group that delineates documents and data on taxonomy groups. Specifically, these include crustaceans, fish and worms. The data is taken from the Ocean Biodiversity Information System (OBIS), a free accessible online world database established by Professor Mark Costello of the University as part of the marine biology investigation, a global marine exploration program from 2000 to 2010. Recorded information about the time and location of species was compiled into latitude ranges and a statistical model was used. Use to calculate variables in sampling. Last year, Professor Costello co-authored a study that found that although marine biodiversity escalated and peaked at the equator during the last ice age 20,000 years ago, it was pulled flat before the status quo. global warming in the industrial era. This study uses fossil records of marine plankton buried in deep-sea sediments to track changes in species diversity over thousands of years. The latest research on a decade scale shows that this flat drag has continued over the past century, and that the number of species is now decreasing at the equator. This research, and other work underway, shows that the number of marine species declines when the average annual seawater temperature is above 20 to 25 degrees Celsius (varies with different species. ). As one of the lead authors of the current International Commission on Climate Change (IPCC) 6th Assessment Report, Professor Costello argues that these findings are of great significance. “Our work shows that man-made climate change affects marine biodiversity on a global scale across all species. Climate change is already here for us and is happening at an ever-increasing rate. We can predict general trends in species diversity, but due to the complexity of ecological interactions, it is currently unclear how rich marine life and fisheries will be. how to change according to climate change ”, said Professor Costello. According to a new study published in the journal Nature Climate Change, the rate of climate change in the depths of the world’s oceans could be seven times higher than current levels in the second half of this century even if greenhouse gas emissions have been significantly reduced. Different global warming at different depths has a major impact on the wildlife of the oceans, causing disconnections as species that rely on each other for survival are forced to move. Professor Anthony Richardson of the University of Queensland and CSIRO, who is also one of the 10 authors of the study, pointed out: “What really worries us is that when we move down deep in the ocean, the climate velocity moves downwards. transfer at different speeds ”. This can create a disconnection with species that depend on organic organisms of different layers. Tuna, for example, live in the middle layer with a depth of 200 – 1000 m, but they need plankton near the sea surface. Professor Richardson emphasized that the results of the study are of concern, with climatic speeds varying depending on the depth of the ocean and the tendency for species to move to be uneven. This may mean marine protected areas established to protect species or habitats may no longer work as species move out of protected areas into unprotected areas.