10 Astonishing Facts About Jellyfish
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Jellyfish are invertebrates along with corals, gorgonians and anemones, belong to a community called the Cnidarians. This species group has stinging cells that they are using for both to capture their predators and as a means of protection. This species may be invincible. It can play its life cycle in reverse, turning the adult medusa back into an immature polyp.
Let’s put aside these issues for now and plunge deep into the incredible realm of animals widely recognized as jellyfish.
1. They exist at a date earlier than dinosaurs hundreds of millions of years ago.
Jellyfish don’t have bones, but it’s impossible to find fossils. However, scientists have evidence that all these organisms have been bubbling along in the earth’s oceans for at least 500 million years. The jellyfish legacy is likely to go back much farther, probably 700 million years. That’s about three times the age of the very first dinosaurs.
2. They are 98% water, with no brain or heart.
Jellyfish appear to meld in with their surroundings, lightly undulating with ocean waves, although with legitimate reason: their bodies are made up of as much as 98% of water, says How Stuff Works. Within a few hours, as they land on the shore, they will vanish when their bodies…
