Florida, Sharks, Red Tide

  This is what happens when corporations pollute the crap out of the environment. 

Guardian UK: Sharks fleeing toxic red tide take refuge in Florida canal - Lemon, blacktip, bonnethead and nurse sharks retreat from sea as state struggles to contain pollution problem Richard Luscombe in Miami

...the changes in the chemistry of the water, the oxygen being pulled out of the water, the toxins, combined with the amount of dead fish around...

National Ocean Service: What is a red tide? A "red tide" is a common term used for a harmful algal bloom.