15 Lesser-Known Facts About The Mighty Ocean


The vast and mysterious ocean covers over 70% of our planet. What do you know about it? Beyond the crashing waves lie countless surprises. Get ready to be amazed as we explore 15 facts about the ocean you probably didn’t know!

The Ocean is Mostly Dark


Sunlight can only penetrate the ocean about 600 feet (180 meters)—give or take 400 feet. Beyond that, the deep sea is perpetually dark. This vast realm, encompassing most of the planet’s surface, remains largely mysterious.

Mars Mapped More than the Ocean

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We have detailed maps of the Martian surface thanks to rovers and orbiters. But incredibly, a significant percentage of the ocean floor remains unmapped. New submarine features and mountain ranges are still being discovered!

Ocean has the Tallest Recorded Mountain


Mount Everest, while impressive on land, isn’t the tallest mountain on Earth. The oceanic realm holds the record for the tallest mountain in the ocean. Mauna Kea, a dormant volcano in Hawaii, measures over 33,000 feet (10,000 meters) tall from its base to its peak above sea level.

Ocean Makes Most of Earth’s Oxygen

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We all know plants produce oxygen, but did you know that much of the oxygen comes from the ocean? Tiny marine organisms called phytoplankton are like microscopic factories, churning out oxygen through photosynthesis, similar to plants on land.

Ocean’s Symphony of Sounds


The ocean is not silent. Whales communicate with complex songs, shrimp crack their claws, and fish release chirps and whistles. These sounds can travel vast distances underwater, creating a unique soundscape scientists are only beginning to understand.

Underwater Rivers Flowing Through the Sea

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Imagine a river flowing within the ocean. Believe it or not, these rivers exist. They are dense saltwater currents that flow along the ocean’s bottom, some even thousands of miles long. These currents carry cold, nutrient-rich water, influencing marine life and shaping the ocean bottom.

Ocean Floor is a Graveyard of Empires

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Throughout history, shipwrecks litter the bottom of the ocean, serving as a silent testament to human exploration and disaster. These wrecks are like time capsules, preserving artifacts and offering glimpses into past cultures and technology.

Bioluminescent Creatures Light Up the Deep


In the blackness of the deep sea, many creatures produce their light, a phenomenon called bioluminescence. These glowing organisms use light to attract mates, lure prey, or communicate. They create an otherworldly spectacle, like glittering stars scattered across the ocean floor.

Ocean Holds Mountains of Gold


Tiny amounts of gold are dissolved in seawater. The total amount is estimated to be worth trillions of dollars. However, extracting it from seawater using current technology is impractical and uneconomical. Researchers are still searching for cost-effective ways to harvest this bounty.

Ocean’s Memoir of Ancient Climates

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The ocean floor holds a record of Earth’s climate history. Layers of sediment accumulate over time, trapping microscopic fossils and minerals that reveal past environmental conditions. By studying these layers, scientists can piece together clues about past ice ages, ocean temperatures, and atmospheric changes.

The Ocean Shapes Weather Patterns


The ocean contributes to shaping weather patterns. Ocean currents transport heat around the globe, influencing temperature and precipitation. Understanding these interactions is key to predicting weather patterns and climate change.

The Ocean is a Natural Pharmacy


Many medicines and medical treatments come from the ocean. Researchers are constantly exploring marine organisms’ potential to develop new drugs for various diseases.

Ocean’s Role in Climate Regulation


Acting as a giant heat sink, it absorbs a significant amount of the sun’s warmth, which helps regulate Earth’s climate and prevent extreme temperature fluctuations.

Plastic Pollution—A Growing Threat

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A scary amount of plastic ends up in the ocean every year. They break down into microplastics, which oceanic life ingests, causing harm and disrupting the food chain. This pollution is an increasing environmental concern today.

The Ocean is Still Full of Mysteries


Despite all the technological advancements, most of the ocean remains unexplored. New species are discovered regularly, and strange phenomena like bioluminescent milky seas baffle scientists.


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