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Ocean Facts

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Dive in and find answers to your deepest ocean questions. Why is the ocean blue? What causes ocean waves? How do I become and oceanographer? Get the facts and increase your ocean knowledge.

View all whale Marine Mammals

How do marine animals hear?

Sound travels faster and farther in water than air, helping marine animals like whales, corals, and crabs navigate, communicate, and survive by detecting and responding to underwater acoustic signals.

Ocean Life

Can probiotics make coral reefs healthier?

Just as humans use probiotics to prevent sickness and promote better health, the Reef Solutions team at WHOI is trying to determine if a naturally-occurring probiotic in the ocean-a bacteria known as Synechococcus-can offer similar benefits to corals.

Ocean Life

Why is the ocean vital for our survival?

Without the ocean, life as we know it wouldn’t be possible.

Ocean Life

How do manatees stay hydrated?

Marine mammals need to hydrate-even in the saltiest of seas. Here’s how manatees stay fresh wherever they go.

Ocean & Human Lives

What happens in the ocean as a hurricane passes over?

Hurricanes are powerful storms that cause massive damage on land. Here’s a look at what happens below the surface during a storm.

Climate & Weather

What is a marine heatwave?

From waning winds to warmer atmospheres, here is the recipe for sudden temperature spikes in our ocean

Ocean Life

Why do emperor penguins toboggan?

Learn why Emperor penguins slide around on their bellies or “toboggan” when they’re on the move in Antarctica.

Ocean & Human Lives

How deep do marine plastics go?

Learn how plastic pollution pervades the ocean, from surface debris to deep-sea trenches. With 390 million tons produced annually, plastic poses a significant threat, impacting marine ecosystems and organisms.

Sustainable Ocean

How does ocean warming affect fisheries?

The ocean has absorbed 93% of excess heat from human activities, raising its temperature by 1.5°F since 1901. Warming oceans impact fish migration, leading to conflicts and overfishing.

Carbon Cycle

Where does all the carbon go?

Explore the ocean’s critical role in carbon sequestration and how it could be a pathway to mitigate climate change.

Ocean Tech

Can AI help us explore the ocean?

Learn how scientists at WHOI are using AI, like the software “Spock,” to enable autonomous underwater robots, such as Nereid Under Ice and CUREE, to study marine life and explore ocean environments.

Ocean Tech

What are ocean robots?

From the icy poles to sensitive coral reefs, robots empower us to understand more of the ocean than ever before. But just what are they?

Ocean Tech

How do ocean robots take the pressure?

Find out how engineers build robots to withstand the crushing pressures of the deep sea

Ocean Fact Checkers

The ocean plays a central-yet underappreciated-role in global climate and regional weather patterns, including droughts, rainstorms, and hurricanes.

View all Ocean & Human Lives

Does plastic last for thousands of years in the environment?

Plastic pollution is a serious-and growing-environmental problem, with millions of tons of bags, bottles, fishing gear and more piling up on land and floating out to sea.

Ocean Life

Are offshore wind farms harming whales?

A collection of seemingly grass-roots organizations claim that offshore wind projects are responsible for an…

How the Ocean Works

Will the Gulf Stream really shut down?

Recent news headlines suggest the Gulf Stream current could shut down in just a few years-or perhaps a few decades-bringing about a catastrophic change in global climate.

How the Ocean Works

It’s always freezing in the Arctic. Or is it?

WHOI experts dig into a popular misconception that the Arctic is always frigid.

Ocean Life

Is the Great Barrier Reef making a comeback?

The world’s largest reef saw record growth after years of bleaching, but it’s not out of the woods yet

How the Ocean Works

Ocean acidification is no big deal, right?

Some people argue that ocean acidification isn’t an issue of concern. After all, they say,…

Climate & Weather

Is sea-level rise exaggerated?

WHOI’s Chris Piecuch debunks a long-standing myth

Climate & Weather

Are we heading toward another Little Ice Age?

In the 2004 blockbuster “The Day After Tomorrow,” the Northern Hemisphere experiences an abrupt and…

Creature Features

The ocean plays a central-yet underappreciated-role in global climate and regional weather patterns, including droughts, rainstorms, and hurricanes.

View all Ocean Life

Creature Feature: Ctenophores

Bioluminescent blue-green “combs jellies” light up coastal shores at night, as well as the depths of the twilight zone, where a number of species have yet to be formally described.

Helmet jellyfish Ocean Life

Creature Feature: Helmet Jellyfish

Due to their photo-sensitive red pigment, helmet jellies avoid sunlight like the plague, preferring the frigid depths of the twilight zone to the sun’s damaging rays.

King penguins on the South Sandwich Islands. Photo by Ian Parker on Unsplash. Ocean Life

Creature Feature: Penguins

We might chuckle at the sight of penguins waddling over ice and belly-flopping into iceberg-studded waters, but these flightless birds would put Olympic swimmers to shame.

Elephant seal Ocean Life

Creature Feature: Elephant Seal

These enormous, blubbery marine mammals awkwardly belly-flop around on land, but are elegantly adapted for life in the twilight zone-where they spend 90% of their at-sea time.

Ocean Life

Creature Feature: Whale shark

Being the largest fish in the ocean (and the largest non-mammal vertebrate in the world) is just one of the surprising things about the whale shark.

Basking shark Ocean Life

Creature Feature: Basking Shark

If the twilight zone had a yearbook, the basking shark would definitely be named “Most Chill.”

Ocean Life

Creature Feature: Giant Ostracod

Although their name makes them sound huge, the largest species of giant ostracod only measures about an inch long. Size is relative, however: that’s more than 30 times the size of average ostracods.

Ocean Life

Creature Feature: Glass squid

Glass squid spend their lives going with the flow. Literally. Filled with ammonium chloride, a solution that’s lighter than seawater, they float effortlessly through the ocean in search of mates and food.

Ocean Life

Creature Feature: Dragonfish

Dragonfish aren’t actually dragons, but with a slender, luminous barbel hanging from their chins and glowing blue-green lights covering their bodies, this species is downright otherworldly.

Ocean Life

Creature Feature: Lancetfish

Piercing the darkness of the twilight zone, the aptly-named lancetfish stops at nothing in pursuit of its target. Measuring up to two meters (6.6 feet) in length, lancetfish are some of the biggest creatures in the twilight zone.

Ocean Life

Creature Feature: Elongated Bristlemouth

With its needle-like fangs and long lower jaw, the elongated bristlemouth lives up to its name. Flexibility may be the key to this deep-sea fish’s success.

Ocean Life

Creature Feature: Black Swallower

In the ocean twilight zone, the ability to swallow more than you can chew is a matter of survival. But the black swallower takes the cake-or rather, the fish.

Ocean Life

Creature Feature: Bean’s bigscale

Very little is known about this bigscale or “ridgehead” fish.

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