Jellyfish Facts!
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Join us as we travel the oceans far and wide with these electric jellyfish facts!
Fast jellyfish facts
Phylum: Cnidaria
Class: Scyphozoa
Classification: Invertebrate
IUCN status: Not evaluated
Lifespan (in wild): One year
Weight: Up to 2kg
Body size: 2cm to 2m
Top speed: 8km/h
Diet: Fish, shrimp, crabs, tiny plants and even other species of jellyfish
Habitat: Oceans
Range:
Jellyfish have been around for millions of years, even before dinosaurs lived on the Earth. Pulsing along on our ocean currents, these jelly-like creatures can be found in waters both cold and warm, deep and shallow and along coastlines, too. Some jellyfish are clear, but others are vibrant colours of pink, yellow, blue and purple. They can be bioluminescent, too, which means they produce their own light!
Jellyfish have no brain, heart, bones or eyes. They are made up of a smooth, bag-like body and tentacles armed with tiny, stinging cells. These incredible invertebrates use their stinging tentacles to stun or paralyse prey before gobbling it up.
The jellyfish’s mouth is found in the centre of its body. From this small opening it both eats and discards waste. And it serves another purpose, too – by squirting a jet of water from its mouth, the jellyfish can propel forward! Cool, eh?
Jellyfish digest their food, which consists of fish, shrimp, crabs and tiny plants, very quickly. If they didn’t, they wouldn’t be able to float, being weighed down by the large, undigested grub in their body.
The jellyfish itself provides a tasty meal for other ocean creatures, particularly sea turtles, who like to guzzle them up regularly. In some cultures around the world, people eat jellyfish, too. In China, they are considered a delicacy, and are also used in Chinese medicine.
Jellyfish stings can be painful to humans and, from certain species, they can even be deadly. Although these magnificent marine creatures don’t purposely attack humans, most stings occur when people accidentally touch a jellyfish.
Picture credits
Bioflourescent jellyfish: Getty Images UK. Close-up of purple jellyfish: Bruce H. Obison. Jellyfish with long tentacles: Natursports, Dreamstime. Yellow jellyfish: Tim Hester, Dreamstime. Map showing jellyfish distribution: National Geographic Maps.
What did you make of our jellyfish facts? Leave a comment below and let us know!
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COMMENTS1
jellyfishes are amazing
Coolboy
Wow great thank you so much!
Benji
Joe
wow
asfhk
are cool
Jelly
Cool
JimmyIsCool
Jellyfishes are cool
plant
jellyfish are awesomly bad animals
Cool
Cool
Plant
Rosa
WoW
plant
cool
wow
Alisha
there is a type of jelly fish that lives forever. Its called the immortal jellyfish!
cool
Riley H
Jellyfish are amazing and awesome. I liked the pictures
Tigers
It was very informative about how the magnificent live , eat and there body structure
ANIMALAM SHRAM
Great facts
It was interesting
Stella
I'm so excited!
animal lover6540
EPIC
WOW
jedidah
I love it
olivia
cool
Super cool
Wow
Noice
dolphin
Cool!
cool
Ann and Anna
WOW
Cool!
123
I don’t know what you think about jellyfish
Hamish
Nice to know
Bob
I learnt alot of things about jellyfish on this website great job keep it up
ZAYOU3@schools.vic.Edu.au
i like this web but it needs on the anamils one it needs the crok one on this
They are so cool
Zaricorny
Doing project needed info thanks
fatima
jellyfish are really cool
Jellyfish are the coolest
Jellyfish really interest me
hello
very good
mac0025
LIVING ELECTRICITY!!!!!!!
Thanks
sonakshipal1
i love jellyfish they are so cool
OLIVER.YEOMANS
interesting
Ridhima Budhiraja
This information is very useful.This website is also very useful.Thank you 'NATIONAL GEOGRAPHY KIDS'
ruby cat
love these jellyfish just didn`t like it when i got stung in India .
Sean Wang
I think the Jellyfish facts were very informative and it was just what I was looking for. Thank you.:)
monkey-face
very amazing info
turtleface
i think the jellyfish article was cool and when I went to the beach I saw a huge jellyfish!
Ngarewa
Very very cool
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