The tiny Australian box jellyfish is considered the most venomous animal in the sea—their sting can cause cardiac arrest, paralysis or death in humans in just a few minutes. Let's just say you want to avoid it.
Unlike other cryptids which exist only in our imaginations even today, the kraken had the benefit of being inspired by something which actually exists. In 1857, the giant squid was classified as a real living species for the first time, thanks to examinations of their beaks.
"The Bloop" is the given name of a mysterious underwater sound recorded in the 90s. Years later, NOAA scientists discovered that this sound emanated from an iceberg cracking and breaking away from an Antarctic glacier. Shown here: a NASA Landsat mosaic image of Antarctica.
The Pacific Ocean, the largest and deepest ocean on Earth, is home to some of the most dangerous waters in the world.
Of the estimated 1,200 venomous fish species on Earth, the stonefish is the most lethal – with enough toxin to kill an adult human in under an hour. Thankfully, effective anti-venoms are available, though these need to administer quickly to prevent severe symptoms like tissue necrosis, paralysis and heart failure.
Stonefish are the most venomous of all fishes. They are found throughout shallow coastal waters of the northern half of Australia.
Recovery usually takes about 24 to 48 hours. Outcome often depends on how much venom entered the body, the location of the sting, and how soon the person received treatment. Numbness or tingling may last for several weeks after the sting. Skin breakdown is sometimes severe enough to require surgery.
In the Pacific Ocean, somewhere between Guam and the Philippines, lies the Marianas Trench, also known as the Mariana Trench. At 35,814 feet below sea level, its bottom is called the Challenger Deep — the deepest point known on Earth.
Planes should avoid flying over the Pacific Ocean because it is not a suitable location for a forced landing in the event of an emergency. It's quite unlikely that anybody aboard a jet that crashed in the Pacific would survive the landing, and rescuers would have much of a chance in finding them down and saving them.
1: Mosquito
Those buzzing blood-suckers mosquitoes are the deadliest animal in the world - and chances are you have one in your house right now. The insects are estimated to cause between 750,000 - one million deaths every year.
While it's difficult to know exactly how many marine animals are killed by plastic pollution, it's been estimated that plastic pollution kills 100,000 marine mammals every year. 81 out of 123 marine mammal species are known to have eaten or been entangled in plastic, and all seven sea turtle species are affected.
Purple – Dangerous Marine Life
A purple flag means that there is dangerous marine life in the water. It doesn't mean you will see shark-infested waters when you walk onto the beach; you may not even see anything. Most likely, this means there are jellyfish or stingrays in the water.
The Titanic wreckage, which is about 12,500 feet deep in the North Atlantic, is in the midnight zone. That's as deep as about nine Empire State Buildings stacked on top of each other.
Last year an expedition to the Mariana Trench made history by conducting the deepest crewed dive ever completed as it descended 10,927 metres into the Challenger Deep.
The Arctic Ocean is the smallest and shallowest of the world's five major oceans.
Putrefaction and scavenging creatures will dismember the corpse in a week or two and the bones will sink to the seabed. There they may be slowly buried by marine silt or broken down further over months or years, depending on the acidity of the water.
While the recommended maximum depth for conventional scuba diving is 130 feet, technical divers may work in the range of 170 feet to 350 feet, sometimes even deeper.
The vibrant and showy fighter fish is one of the most well-known freshwater aquarium fish kept as a pet. Also known as the Siamese fighting fish, or betta fish, (the scientific name is Betta splendens) this fish is known not only for its beauty but also its feisty nature.
Platies are very peaceful fish that will live peacefully with any other non-aggressive fish. There are lots of varieties to choose from and they come in a variety of different colors, as a result of selective breeding. Platies are not picky when it comes to diet.