The Secret World of Jellyfish

At the mere mention of the name 'jellyfish' most of us imagine shapeless, rubbery and even disgusting creatures. In any case there's something we do not wish to touch. It isn't until we see them under water that they transform into graceful beings. In the course of evolution jellyfish have developed unbelievably clever skills and have conquered every habitat in our oceans.

To protect themselves they've developed weapons that can also become dangerous to humans. Most jellyfish are not a threaten species. Among the large family of jellyfish, the 'Box jellyfish' is the most dangerous, closely followed by the Siphonophorae - the Portuguese man o' war. For most of us the word 'jellyfish' evokes negative feelings. The term 'medusa' is more appropriate and it gives a feeling of mysterious and dangerous beauty.

In this documentary Dr. Gerhard Jarms will be introducing us to the unusual life-cycle of these animals. In reality jellyfish are smooth, soft and what is even more interesting their history goes back 500 million years. During this time they have developed the most fascinating shapes and most interesting lifestyles. They live both in the deep sea and on the coastline.