Jellyfish are invertebrates found in oceans and in some cases fresh water. There are over 200 known species of jellyfish on the planet.Redjellyfish.com: Jellyfish
Body
The body of a jellyfish consists of an outer covering known as the epidermis, the inner lining, which produces jelly, is called the gastrodermis. Jellyfish do not have a brain, heart, blood or bones. The gastro vascular cavity functions as a mouth and anus. Their tentacles contain stingers that release venom.Buzzle.com: Jellyfish: Curious creatures of the sea
Jellyfish Stings
Jellyfish stings should be treated immediately. Symptoms include an intense, stinging pain, itching, rash and raised welts. In severe cases coma or death may occur.eMedicineHealth: Jellyfish Stings
Jellyfish sting as a way to protect themselves from predators.Buzzle.com: Jellyfish: Curious creatures of the sea
Treatment
- Assess pain
- Rinse stingers off with salt waterMarine-Medic.com: First Aid
- Douse any adherent tentacles with salt water or vinegarMarine-Medic.com: First Aid>
- Apply a cold wrap or ice for 10-20 minutesMarine-Medic.com: First Aid
- Call for medical aid or ambulanceMarine-Medic.com: First Aid
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References
Fast Facts
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Phylum
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Class
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Over 200 species
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Jellyfish are not fish
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Live in groups called bondamines
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Most live in shallow coastal watersRedjellyfish.com: Jellyfish
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Made of 95% water
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Have been on the planet for over 650 million years
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