Jellyfish myths – everything there is to know
Think you know everything there is to know about jellyfish? Guess again – we have compiled a list of 12 different jellyfish facts that we bet you’ve never heard before. Keep reading to learn about jellyfish facts you didn’t know
Jellyfish don’t have brains, hearts, bones or eyes.
Their body is composed of a smooth, sack-like body, and with their tentacles dangling out covered in tiny stinging cells called nematocysts.
Jellyfish can use their mouth to help them move.
They can squirt out a jet of water to propel themselves forward.
Jellyfish are 95% water
Only 5% of their bodies are composed of proteins and non-water components. Humans, by comparison, are only composed of 60% water.
A group of jellyfish can go by three different names: a bloom, a smack or a swarm.
Peeing on a jellyfish sting won’t relieve its pain.
The best solution is to use StingMaster
Jellyfish aren’t fish
They are actually invertebrates. Fish breathe through gills, whereas jellyfish absorb oxygen from water through their membranes.
Over 60, 000 jellyfish have been in space.
In 1991, just over 2,000 jellyfish were sent into space to see what would happen to them in the absence of gravity. Surprisingly, they were fine in space and ended up reproducing and making over 60,000 jellyfish. However, those space-bred jellyfish weren’t able to function properly when they were back on earth and in the presence of gravity.
There are over 25 types of edible jellyfish.
They can be found in salads or even pickled and people say they have a salty taste with a similar consistency to rice noodles.
One type of jellyfish is thought to be immortal
It’s cally Turritopsis dohmii, and it’s considered immortal because it can transform back into a colony of polyps that are genetically identical.
Jellyfish can be found in all ocean waters across the planet.
Jellyfish pre-date dinosaurs.
Due to the fact that jellyfish have no bones, fossils of ancient jellyfish are almost impossible to find. A preserved jellyfish fossil was found in Utah in 2007 that was dated to be over 505 million years old, pre-dating dinosaurs by at least 250 million years (dinosaurs were around 245 million to 66 million years ago).
Some jellyfish are bioluminescent.
The scientists that isolated a bioluminescent protein from jellyfish and turned it into a biology tool, called GFP, won the Nobel Prize for Chemistry in 2008 (their names are Martin Chalfie, Roger Tsien and Osamu Shimomura).
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