How long have jellyfish been around?

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How long have jellyfish been around?

2006-07-17 09:55:30 · 3 answers · asked by Jasmine M 1 in Science & Mathematics ➔ Biology

3 answers

Jellyfish belong to the phylum Cnidaria . The phylum has evidence of existing over 550 million years ago (it is one of the earliest phylums). However, much evolution has taken place since then. It depends what you re talking about when you say jellyfish - as there are many types of "jellyfish." I would look it up in a reliable source.

2006-07-17 10:06:03 · answer #1 · answered by k p 2 · 0⤊ 0⤋

Millions of years just like everything else

2006-07-17 16:58:59 · answer #2 · answered by Bill 6 · 0⤊ 0⤋

Ever since I have been on this earth they have been here. If you want a serious answer, look it up on Google.

2006-07-17 17:02:12 · answer #3 · answered by Just Me 3 · 0⤊ 0⤋