Zombie-Ant Fungus Has Its Own Killer Fungus

The Zombie-Ant Fungus invades the brain of the carpenter ant, and forces it to march to its own death.  Even more strangely, this Fungus has an enemy of its own, that attacks the dead ant as well as the Fungus inside.  In effect, it is beneficial to the ants, because it attacks the Fungus that is preying on them.  This goes to show how complicated many relationships are in the wild, especially in life-rich areas such as rainforests.

http://www.nytimes.com/2012/05/08/science/zombie-ant-fungus-has-its-own-killer-fungus.html?_r=1&adxnnl=1&ref=science&adxnnlx=1336766408-EoDi2WKitWgtGp/Xoh5LxQ