MadSci Network: General Biology |
Hi. This is a very good question. It's usually difficult to measure how many years an invertebrate lives. It's using the hard body parts that scientists can measure an animal's age. But in case of jellyfish, it lives for about a year or so. It's a seasonal animal. The jellyfish that you see, is actually the medusa form of jellyfish. It also has another form called polyp. The latter form which has the same genetic make up is attached to the bottom of ocean and it's function is to grow and reproduce asexually forming the jellyfish medusa. I hope this extra info was useful. A.E. www.geocities.com/Athens/Troy/7063
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