The dark side of jellyfish

Apart from a few deadly exceptions jellyfish are basically harmless blobs floating around the ocean.

But in large numbers it’s a very different story. Lisa-Ann Gershwin knows all about them and has identified 16 types and 150 new species.

In this Tedx Melbourne talk she warns of the problems and threats they pose to humans and marine eco-systems.

Read more...http://www.abc.net.au/radionational/programs/bigideas/jellyfish-blooms/6999256