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sea cucumbers

True Facts About the Sea Pig
Image: iStockphoto.com/mgokalp

True Facts About the Sea Pig

What has no brain, breathes with its anus, and is called the “earthworm of the sea?” The sea cucumber.

Related to starfish and urchins, this squishy scavenger lives in oceans, eating tiny bits of algae, marine animals, and waste from the sea floor. Find out more about this echinoderm, its multipurpose butt, and what it shoots from its rear to scare away predators.

NEPTUNE Canada
Sea Cucumbers Are Underwater Vacuum Cleaners

Sea Cucumbers Are Underwater Vacuum Cleaners

Did you know sea cucumbers actually clean the sand on the ocean floor? And their nutrient-rich poop benefits coral reefs. Take a look. More...

Video
The Kids Should See This
The Swimming Sea Cucumber and the Exploding Paint Pack

The Swimming Sea Cucumber and the Exploding Paint Pack

Did you know some sea cucumbers swim, and even glow? Find out how these creatures use their bioluminescence as a burglar alarm. Super sneaky! More...

Article
Scientific American
Top 10 Gross Outs: Sea Cucumber Poop

Top 10 Gross Outs: Sea Cucumber Poop

Want to be grossed out? Watch a sea cucumber do its business all over the sea floor. And find out why these bottom feeders are actually “vacuum cleaners of the sea.” More...

Video
Animal Planet
World’s Weirdest: Sea Cucumber Fights with Guts

World’s Weirdest: Sea Cucumber Fights with Guts

It may not have a brain, but the harmless-looking sea cucumber holds a secret weapon: its guts. See how it fights back when a nipping fish crosses the line. More...

Video
National Geographic
Echinodermata, Class Holothuroidea

Echinodermata, Class Holothuroidea

Sea cucumbers exist in so many colors and shapes. Check out a variety of species, including the burnt hot dog sea cucumber, the warty sea cucumber, and the chocolate chip sea cucumber. More...

Images
MarineLifePhotography.com
Giant Sea Cucumber Eats with Its Anus

Giant Sea Cucumber Eats with Its Anus

Talk about a multipurpose butt. The giant California sea cucumber breathes AND absorbs food with its anus. Learn more about its “second mouth.” More...

Article
National Geographic
Quiz: The Sea Cucumber

Quiz: The Sea Cucumber

Know a thing or two about the sea cucumber, like its life span, predators, and defense technique? Then try to ace this quiz. Good luck! More...

Interactive
FunTrivia.com
Sea Cucumber

Sea Cucumber

Sea cucumbers live on or near the ocean floor, eating tiny bits of algae and aquatic animals. Find out how they absorb food, reproduce, and scare away enemies. More...

Article
National Geographic
The Surprising Sea Cucumber

The Surprising Sea Cucumber

After visiting a marine lab, a student recalls the amazing things she learned about sea cucumbers, including a bizarre method for distracting predators. More...

Article
Science Friday

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