They're the largest invertebrates and also have the biggest eyes in the animal kingdom, which would help them to see in the pitch black of the deep sea. This means that there are lots of creatures living down there that have barely been seen by humans! One famous mysterious creature is the giant squid, which can probably be found in all oceans and lives at depths of between 300 and 1,000 feet - but scientists don't know for sure because they're so hard to find. Some creatures live so deep down we’ve barely seen them!Īs you now know, it's tricky to go deep in the ocean unless you have a very good submarine. They live up to 90 years, and can be found in all oceans except the Arctic. Their hearts are the size of a car, and they are the loudest animals on earth, reaching 188 decibels. The blue whale is bigger than all of them! They can grow up to 100 feet long and weigh the same as 30 elephants. Yes, that includes dinosaurs and every other extinct animal, like the giant shark Megalodon. The biggest animal of all time is the blue whale. The biggest animal EVER calls the ocean its home! There is an insane amount of volcanic activity in the ocean, and most of it happens in the South Pacific in an area no bigger than New York that contains 1,113 volcanoes! 9. 90% of volcanic activity happens in the ocean! The Mid-Ocean Ridge, which spans 40,389 miles (10 times longer than the Andes!) runs down the middle of the Atlantic Ocean. The biggest mountain range in the world is in the ocean! ![]() That's right, James Cameron of Titanic and Avatar fame! He's a big fan of ocean exploration! 7. And that's exactly what the Deepsea Challenger did! This submersible vehicle reached the furthest anyone has ever gone, almost to the bottom, piloted by James Cameron. ![]() So, if you wanted to explore it you'd need a powerful machine with very bright lights. For reference, you could put Mount Everest in there and still have around 2km to spare! It's very dark down there and the pressure is intense - it's 8 tons per square inch, which means if you were down there it would be like trying to hold up 50 jumbo jets. The deepest part of the ocean is the Mariana Trench, which is about 11km deep at the deepest point found so far. You can see jellyfish and other creatures glowing and glittering, or (in the case of the creepy-looking anglerfish - remember Finding Nemo?) using their light to attract prey! 6. Deep sea creatures have adapted - some make their own light in the dark ocean using a process called bioluminescence. It's very hard to see in the dark (obviously), so that makes exploring difficult. There are five layers - the sunlight zone, the twilight zone, the midnight zone, the abyss, and the trenches. Oceans have an average depth of of 12,100 feet, and sunlight can only penetrate about 330 feet in water, so everything below that will be dark. This means people can't dive beyond certain depths, so exploring becomes a bit more difficult! 5. This means that deep water is very hard for people to go into - if you've ever swum in a really deep pool you might have noticed it hurting your ears and nose. Water is a lot denser than air, and that means the more there is of it, the more pressure is placed on whatever is inside. It’s REALLY heavy down there!Īnd by heavy, we mean the pressure is intense. We actually have better maps of Mars than we do of the ocean! There are a number of reasons for this, including. Less than 5% of the ocean has been explored! Most wildlife lives in the ocean!Ībout 94% of all wildlife ON EARTH is in the sea! That means we land-dwellers are a very small minority. Our little planet is in fact mostly water - and mostly sea water at that! That's why they call it the blue planet! 2. It covers more than 70% of the Earth's surface! whatever you call it, the ocean is totally fascinating! We've compiled 20 facts to blow your mind like an underwater volcano - do you know how deep the deepest point of the ocean is, or what the biggest animal that lives in it is? Find out here!ĭon't forget to check out some more watery facts - learn all about octopuses, mako sharks, or the Titanic! 1. The briny deep, the big blue, the seven seas, Neptune's kingdom.
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