Top 10 Most Dangerous Lakes on Earth

1. Karachay Lake

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After being used as a dumping site for radioactive waste for decades, Lake Karachay, located in the southern Ural mountains in western Russia, has become one of the most polluted spot in the world. Spending just five minutes near the lake is enough to receive a deadly radioactive dosis, while spending an hour there will probably kill you within the next few hours. In 1968, during drought conditions, the wind carried radioactive dust away from the lake’s dried area, irradiating half a million people. The radiation was comparable to the effect of the atomic bomb dropped on Hiroshima. Another 7,000 people who lived in the area were relocated.

Source: Wikipedia

2. Lake Rakshastal

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Lake Rakshastal (left in the picture above) is a saltwater lake in Tibet, lying close to the west of Lake Manasarovar. Named “lake of the demon”, Lake Rakshastal produces no waterweeds or fish and the locals consider it poisonous. It is considered to be the home of the ten-headed demon king of Lanka in Hindu myth.  Lake Manasarovar, shaped like the sun, is regarded as ‘brightness’ in Buddhism, while Lake Rakshastal, shaped as a crescent, represents ‘darkness’. However, despite its notoriety, the lake bears no less beauty than other Tibetan lakes.

Source: Wikipedia

3. Boiling lake

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Boiling lake in Dominica is actually a flooded fumarole (a crack through which gases from molten lava escape), filled with superheated bubbling water that is enveloped in a cloud of vapor. Since the lake is the second largest hot spring on Earth with the water temperature of 82-91.5 Celsius (180-197 Fahrenheit) measured just at the edges, not only it would be uncomfortable to swim in, it would kill you if you even got near it. So far, scientists haven’t measured the temperature in the center of the lake where the water actually boils.

Source: Wikipedia

4. Lake Monoun

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Lake Monoun, that lies in the Oku Volcanic Field in Cameroon, is the first of only three known cases of lake overturn. In 1984, the lake exploded in a limnic eruption and released a cloud of deadly carbon dioxide gas that killed 37 people. A truck carrying twelve people was in the path of the gas and when the engine suddenly stopped working, the people got out of the truck to see what was wrong and were all killed. The only survivers in this accident were two persons riding on the top of the truck as they were above the gas and could still breathe. Two years later a similar event occurred at Lake Nyos, about 100 km away.

Source: Wikipedia

5. Lake Kivu, Rwanda

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Situated on the borderline of Rwanda and the Democratic Republic of the Congo, Lake Kivu is one of the three known exploding lakes and is at serious risk of violent lake overturns. The lake is considered deadly because there are enormous quantities of dangerous gases dissolved in layers beneath its surface – carbon dioxide (which has bubbled up from the volcanic rock), and methane (about 55 billion cubic metres of it) produced by bacteria on the lake bed. If the volcanic activity triggered a methane explosion or release of suffocating carbon dioxide, this could cause a disaster of monstrous proportions, since approximately two million people live in the Lake Kivu’s basin.

Source: Wikipedia

6. Mount Rainier Crater Lake, Washington

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Mount Rainier’s crater lake, the highest crater lake in North America, lies beneath the ice in the west summit crater and it can only be reached by following a network of ice caves in the craters. The water in the crater lake creates sulfuric acid (sulfur dioxide combined with the water) that is eating into the volcanic rock of Mount Rainier. Most volcanic rocks you find anywere else in the world are strong, but in parts of this mountain it can easily crumble in your hand. If the rock were to collapse in any area, it would cause a slurry of mud, rock and ice, or so called “lahars,” that can be deadly because of their energy and speed, causing catastrophic destruction in their path. The collapse of the rock would also breach the crater lake, letting loose tons of water within it. Mount Rainier and it’s crater lake are considered a serious threat to people in Seattle, which is only 87 km away from the mountain.

Source: Wikipedia

7. Mono Lake, California, USA

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Mono Lake, located in Mono County, California, is an ancient saline lake that supports a unique and productive ecosystem. There are no fish in the lake – it is home to trillions of brine shrimp and alkali flies. Until the 1940′s, this stunning lake was healthy and strong, but during the period from 1941 to 1990, Los Angeles diverted excessive amounts of water from Mono Basin streams in order to provide water needs for the growing city. As a consequence, Mono Lake dropped, lost half its volume, doubled in salinity, and became a poisoned alkaline lake containing carbonates, chlorides and sulfates. The Mono Lake Committee formed in response, forced Los Angeles to partially restore the lake level but it is estimated that it will take about 20 years to restore the health.

Source: Wikipedia

8. Horseshoe Lake, California, USA

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Horseshoe Lake, located near the City of Mammoth Lakes that is built on top of an active volcano, is considered to be a silent killer. About 20 years ago, the trees near the lake suddenly began to wither and die. At first, scientist believed the trees had some kind of disease but later they discovered the trees were getting too much carbon dioxide gas, seeping through the soil from cooling chambers of magma. Yes, trees “breathe” carbon dioxide, but high concentrations of carbon dioxide can be deadly even for them. In 2006, three people were killed by carbon dioxide build up in a cave close to Horseshoe Lake where they took shelter.

9. Yellowstone, USA

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Researching fascinating Yellowstone Lake in Yellowstone National Park, placed in the active volcanic region, scientists have found a new way that crater lakes can kill. When they mapped the floor of Yellowstone Lake, they discovered a dome (said to be the size of seven football fields) on the bottom of the lake. The dome is caused by water heated under the lake bed, which when expands, builds up pressure and creates the dome. The scientists fear there is a real hazard of what is known as “hydrothermal explosions.” Those explosions occur when water that feeds the geysers of Yellowstone is explosively flashed to steam, breaking rocks and throwing them into the air. In the history of Yellowstone few large hydrothermal explosions occurred, some leaving craters thousands of meters across the lake as well as in other areas of the park. Although such an explosion last time occurred several thousand years ago, it is said that even a small earthquake could be a trigger for the similar one.

Source: Wikipedia

10. Lake Nyos, Cameroon

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As I’ve already said, there are only three exploding lakes on Earth and Lake Nyos in  Cameroon is one of them. A pocket of magma that lies beneath Lake Nyos leaks carbon dioxide into the water, changing it into carbonic acid. In 1986, two years after Lake Monun exploded in a limnic eruption, Lake Nyos, possibly triggered by a landslide, suddenly emitted a huge cloud of carbon dioxide, which killed thousands of people and animals in the area and nearby towns and villages. It was the first known large-scale asphyxiation caused by a natural event. Today, the lake still poses a threat because its natural wall is weak. If a geological tremor were to cause this natural dike to give way, it would allow water to rush into downstream villages all the way into Nigeria and would allow much carbon dioxide to escape.

Source: Wikipedia

The Venomous Snake - and Home treatment

Two major families of snakes account for most venomous snakes dangerous to humans.

1. The elapid family includes:

• the cobras (Naja and other genera) of Asia and Africa;
• the mambas (Dendroaspis) of Africa; the kraits (Bungarus) of Asia;
• the coral snakes (Micrurus) of the Americas; and the Australian elapids, which include the coastal taipan (Oxyuranus scutellatus),
• tiger snakes (Notechis), king brown snake (Pseudechis australis), and
• death adders (Acanthophis).
• Highly venomous sea snakes are closely related to the Australian elapids.

Pictures of snakes from the elapid family

King cobra (Ophiophagus hannah), a dangerous Asian elapid and longest of the venomous snakes at around 4 m (13 ft). Photograph by Joe McDonald.

Black mamba (Dendraspis polylepis), an extremely fast, large, and dangerous African elapid. Photograph by Joe McDonald.

Coral snake (Micrurus fulvius), a shy American elapid that accounts for only about 1% of venomous snakebites in the United States. Recognize it by this catch phrase: "Red on yellow, kill a fellow." Photograph by Joe McDonald.

Milk snake (Lampropeltis triangulum), a harmless mimic of the coral snake. "Red on black, venom lack," although this old saying becomes unreliable south of the United States. Photograph by Joe McDonald.

2. The viper family includes:

• the rattlesnakes (Crotalus) (Western diamondback rattlesnake and timber rattlesnake), moccasins (Agkistrodon), and lance-headed vipers (Bothrops) of the Americas;
• the saw-scaled vipers (Echis) of Asia and Africa;
• the Russell's viper (Daboia russellii) of Asia; and
• the puff adder (Bitis arietans) and Gaboon viper (Bitis gabonica) of Africa.

Western diamondback rattlesnake (Crotalus atrox), an American pit viper, with rattle vibrating. This is one of the most dangerous snakes of North America. Photograph by Joe McDonald.

Timber rattlesnake (Crotalus horridus), American pit viper, caught yawning after a big meal. Photograph by Joe McDonald.

Cottonmouth or water moccasin (Agkistrodon piscivorous), American pit viper usually found in or near water. Photograph by Joe McDonald.

Northern copperhead (Agkistrodon contortrix), an American pit viper. Bites by this species tend to be less severe than rattlesnake or water moccasin bites but still require urgent medical attention. Photograph by Joe McDonald.

Most species of the most widely distributed and diverse snake family, the Colubrids, lack venom that is dangerous to humans. Some species, however, including the boomslang (Dispholidus typus), twig snakes (Thelotornis), the Japanese garter snake (Rhabdophis tigrinus), and brown tree snake (Boiga irregularis), can be dangerous. Other members of this family, including American garter snakes, kingsnakes, rat snakes, and racers, are harmless to humans.

Snakebite Treatment

Snakebite Self-Care at Home

Common sense, hopefully, will guide a person's efforts if they are bitten by a snake or are witness to someone else being bitten. Even a bite from a nonvenomous snake requires excellent wound care. The patient needs a tetanus booster if he or she has not had one within 5 years. Wash the wound with large amounts of soap and water. Inspect the wound for broken teeth or dirt.

Take the following measures:

• Prevent a second bite or a second victim. Do not try to catch the snake as this can lead to additional victims or bites. Snakes can continue to bite and inject venom with successive bites until they run out of venom.
• Identify or be able to describe the snake, but only if it can be done without significant risk for a second bite or a second victim.
• Safely and rapidly transport the victim to an emergency medical facility.
• Individuals should provide emergency medical care within the limits of their training.
• Remove constricting items on the victim, such as rings or other jewelry, which could cut off blood flow if the bite area swells.
• If a person has been bitten by a dangerous elapid (for example, sea krait [a type of sea snake], black and yellow sea snake) and has no major local wound effects, a pressure immobilizer may be applied. This technique is mainly used for Australian elapids or sea snakes. Wrap a bandage at the bite site and up the extremity with a pressure at which you would wrap a sprained ankle. Then immobilize the extremity with a splint, with the same precautions concerning limiting blood flow. This technique may help prevent life-threatening systemic effects of venom, but may also worsen local damage at the wound site if significant symptoms are present there.
• While applying mechanical suction (such as with a Sawyer Extractor) has been recommended by many authorities in the past, it is highly unlikely that it will remove any significant amount of venom, and it is possible that suction could actually increase local tissue damage. This technique is, in general, no longer recommended but is still listed as a treatment technique in many medical publications. If a person decides to try this technique, the instructions should be carefully followed.
• The two guiding principles for care often conflict during evacuation from remote areas.
  • First, the victim should get to an emergency care facility as quickly as possible because antivenin (medicine to counteract the poisonous effects of the snake's venom) could be life-saving.
  • Second, the affected limb should be used as little as possible to delay absorption and circulation of the venom.

A number of old first aid techniques have fallen out of favor. Medical research supports the following warnings:

• Do NOT cut and suck. Cutting into the bite site can damage underlying organs, increase the risk of infection, and sucking on the bite site does not result in venom removal.
• Do NOT use ice. Ice does not deactivate the venom and can cause frostbite.
• Do NOT use electric shocks. The shocks are not effective and could cause burns or electrical problems to the heart.
• Do NOT use alcohol. Alcohol may deaden the pain, but it also makes the local blood vessels bigger, which can increase venom absorption.
• Do NOT use tourniquets or constriction bands. These have not been proven effective, may cause increased tissue damage, and could cost the victim a limb.

Cute Animals That Will Knock You Dead

They might look sweet and innocent, but many of nature's cutest creatures are deadly. As a reminder of that important principle, here's our list of the cutest animals in the world that could kill you.

Puffer Fish

Few fish are cuter than a fully expanded, portly pufferfish, but don't be fooled. The pufferfish is the second most poisonous vertebrate on the planet. Fishermen recommend the use of thick gloves to avoid poisoning and the risk of getting bitten when removing the hook. The poison of a pufferfish, which has no antidote, kills by paralyzing the diaphragm, causing suffocation.

Slow Loris

This animal might look like a harmless, big-eyed baby ewok, but the slow loris is one of the only poisonous mammals in the world. Its subtle nature makes it popular in the illegal pet trade, but unknowing humans should stay clear of its toxin, which is released from the sides of its elbows. When threatened, the loris takes the toxin into its mouth and mixes it with saliva. The animal will also lick its hair to deter predators from attack. The toxin can cause death by anaphylactic shock.

Moose

Don't let the cartoonish grin fool you; moose are among the most dangerous, regularly encountered animals in the world. They prefer to leave humans alone, but if disturbed or threatened they are known to respond by charging with aggression. They attack more people annually than bears do, and they are especially aggressive when defending a calf.

Cassowary

A cassowary looks like a flamboyant ostrich and can be found wandering the rain forests of Australia and New Guinea. It prefers to keep a low profile, but when disturbed this flightless bird can become extremely aggressive and territorial. Capable of running and leaping at high speeds, the cassowary attacks by thrusting its large claws forward with the aim of disemboweling its target.

Blue Ringed Octopus

The tiny, blue-ringed octopus can pack a wallop. It is widely regarded as one of the world's most venomous animals. It lives in tidal regions ranging from Australia to Japan and is frequently encountered by people wading in tide pools. If provoked or stepped on, it will bite. Blue-ringed octopus poison has no antivenom and can kill an adult human within minutes.

Poison Dart Frog

The charismatic colors might catch your eye, but such pizazz is also nature's way of telling you to stay away. The poison dart frog is among the most poisonous creatures on Earth. Indigenous American Indians used the toxic secretions to poison the tips of blowgun darts.

Giant Anteater

You wouldn't know it by looking at it, but this large creature feeds only on ants and termites. Its size is part of what makes it such a dangerous animal, but the true weapons are the powerful, sharp claws. If threatened, an anteater can maul a human and is capable of disemboweling an adult with one swipe.

Wolverine

This is one weasel you don't want to mess with. Its aggressive nature is widely known, thanks to the popularity of the X-Men comics and movies. Armed with powerful jaws, sharp claws and a thick hide, the wolverine can take down prey as large as a moose and steal food from bears and wolves.

Pfeffer's Flamboyant Cuttlefish

Don't try to cuddle this cuttlefish. Though charming and colorful, this aptly named fish's displays are meant as a warning. Although they rarely encounter humans, its poison is considered extremely toxic and can be as lethal as the poison of the blue-ringed octopus.

Leopard Seal

The leopard seal is at the top of the food chain in its home in the Antarctic, and this is one predator you don't want to swim with. It is bold, powerful and curious, and it has been known to hunt people, although it usually targets penguins. In 1985, Scottish explorer Gareth Wood was bitten twice on the leg when a leopard seal tried to drag him off the ice and into the sea, and in 2003 a leopard seal dragged snorkeling biologist Kirsty Brown underwater to her death.

Gila Monster

This chunky lizard with pink or orange spots is one of the few venomous lizards in the world and the largest lizard native to the United States. Though it is sluggish, the Gila monster is capable of delivering a fatal dose of venom when provoked or stepped on. If you are bitten by Gila monster, submerge the lizard in water to break free from its strong jaws.

The Australian Bat

Beyond cute, this sweet natured and incredibly agile flyer is something you would not want near you… ever. Most people view bats with an unwarranted fear, but these cute Australian bats have been known to kill with nothing more than a simple scratch from their nails.

The Northern Short-Tailed Shrew

The Northern Short-tailed Shrew might look like a tiny, cute, and cuddly animal, but watch out, this critter has a nasty venomous bite. The largest shrew in its family, the Northern short tail is another one of the few venomous mammals around today. The saliva of the Northern Short-tailed Shrew contains an enzyme that is used to paralyze and subdue its prey. The toxin protects the shrew against other, much larger predators, even including humans.

The Raccoon

With their adorable bandit like markings and curious nature, raccoons are one of the more popular yet wild creatures we see around the United States. These super cute creatures have adapted rather well to city living, even benefiting from it. However, these adorably cuddly looking animals with intelligence greater than dogs and cats can also be deadly to humans. In the United States, raccoons are the most common carrier of rabies in the wild.

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The most Dangerous Dogs in the World

Here’s a list of most dangerous dogs in the world. Just for your information. But based on the feedback received, We can’t generalize that those dogs is always be dangerous. As some of them is also can be nice dogs. So Here’s the list of most dangerous dogs in the world.

Alaskan Malamutes

Boxer

Chow Chow

Dalmatian

Doberman Pinschers

German Shepherds

Huskies

Pit Bulls

Presa Canario

Rottweilers