Cnidarians


Back to Invertebrates

Developed by: Sweta & Alex
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A coral reef

Characteristics:

Cnidarians have jelly-like bodies.

They are marine animals.

They have tentacles which can sting you.

Some, such us coral and sea anemone, attach themselves to rocks.

Others, such as jellyfish, can move about.

Types:

  • Coral: Many coral together form a coral reef. Until the 18 th century, people believed coral was a plant, but William Herschel discovered that coral were small animals.
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A very llamative coral.

  • Anemone: Anemone have a mouth surrounded by tentacles with poison.

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A beautiful anemone


  • Jellyfish: Jellyfish can be found in the ocean, but you can find it in fresh water too !!!
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Jellyfish!!!


More Information:

Most cnidarians , as you can see if you read about anemone, have a mouth surrounded by tentacles.They eat placton. Did you know jellyfish killed more than 1.500 people in the 20 th century? Cnidarians have no brain or even central nervous system.


References: