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11 Crazy Facts That Prove How Weird The Ocean Is

There's so much to be discovered! To see the ocean's wonderful weirdness up close, visit the National Aquarium.

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1. It's SO DEEP.

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The Mariana Trench in the Western Pacific is the deepest point in the ocean — it's 10,994 meters (36,070 feet) deep. If we moved Mount Everest to that spot, it would still be covered by about a mile of ocean. That's deep.

2. This is a fish called the Longhorn Cowfish...and it has POISONOUS FLESH.

Their long horns make them harder for predators to swallow, and they have poisonous flesh... Repeat, POISONOUS FLESH.
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Their long horns make them harder for predators to swallow, and they have poisonous flesh... Repeat, POISONOUS FLESH.

3. The longest mountain range in the world is underwater.

Spanning over 40,000 miles around the world, the Mid-Atlantic ridge is the world’s longest mountain range and 90% of it is underwater! It's a whole other world down there.
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Spanning over 40,000 miles around the world, the Mid-Atlantic ridge is the world’s longest mountain range and 90% of it is underwater! It's a whole other world down there.

4. This is a shark.

That's right, the Spotted Wobbegong shark has nasal barbels and hanging tassels on and around its head and body. Plus, its jaws protrude forward when capturing prey. Craaazy.
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That's right, the Spotted Wobbegong shark has nasal barbels and hanging tassels on and around its head and body. Plus, its jaws protrude forward when capturing prey. Craaazy.

5. The pressure at the bottom of the ocean is 1,000 times that of the pressure at the ocean's surface.

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The deeper you go into the ocean, the more pressure builds up on your body. In the deepest part of the ocean, the pressure is the "equivalent of one person trying to support 50 jumbo jets!"

6. Some fish change sex.

The humphead wrasse starts life as a female, but can change sex over the course of its life.
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The humphead wrasse starts life as a female, but can change sex over the course of its life.

7. Sea spiders are a thing.

The Southern Ocean giant sea spider, which has legs that are almost 10 inches long. Some sea spiders even have 10 or 12 legs. RUN!Just kidding! Just fear them from afar.
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The Southern Ocean giant sea spider, which has legs that are almost 10 inches long. Some sea spiders even have 10 or 12 legs. RUN!

Just kidding! Just fear them from afar.

8. Mantis shrimp are crazy strong and have super eyesight.

Like their namesake – the praying mantis – these dudes kill their prey pretty violently. They can swing their clubs at speeds of 31 to 52 mph. Plus, these shrimp have the most complex eyes in the animal kingdom. Not so shrimpy.
Michael Gerber / Getty Images

Like their namesake – the praying mantis – these dudes kill their prey pretty violently. They can swing their clubs at speeds of 31 to 52 mph. Plus, these shrimp have the most complex eyes in the animal kingdom. Not so shrimpy.

9. There are jellyfish longer than a basketball court.

There are more than 200 species of jellyfish, but the lion’s mane is the biggest. They can grow to be 120 feet long and have up to 1,200 tentacles.
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There are more than 200 species of jellyfish, but the lion’s mane is the biggest. They can grow to be 120 feet long and have up to 1,200 tentacles.

10. Octopuses can look like whatever they want.

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That is, their camouflage skills are on point. In the blink of an eye, they can change the color and texture of their skin to perfectly match their surroundings.

11. There’s still A LOT left to explore.

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The ocean contains 99% of the planet’s living space, but less than 10% of it has been explored. Just think of all the weird we’ve yet to discover…

Get a closer look at all the ocean has to offer. Visit the National Aquarium!