"... Jellyfish populations are growing because they can. The fish that used to compete with them for food have become scarce because of overfishing. The sea tur

"... Jellyfish populations are growing because they can. The fish that used to compete with them for food have become scarce because of overfishing. The sea turtles that once preyed on them are nearly gone. And the plankton they love to eat are growing explosively. ..." Interesting comment. Remarkably similiar to the scenario of "species collapse" outlined in Jarad Diamonds work, Collapse. [0] As species loose their ability to adapt in the environment the whole adjacent species start to be effected. Loose enough and whole groups that are closely inter-related disappear. You have to start questioning what are we doing wrong when the stable marine environments start to change so quickly. [0] http://en.wikipedia.org/wiki/Collapse:_How_Societies_Choose_to_Fail_or_Succeed http://en.wikipedia.org/wiki/Collapse:_How_Societies_Choose_...