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Monday, May 9, 2011

How Zombie Ants Lose Their Minds

How Zombie Ants Lose Their Minds

zombie ant

A zombie ant carcass clings to a vein on the underside of a leaf, just as its mind-controlling fungus intended.
CREDIT: David Hughes.

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New gruesome details have emerged explaining how a parasitic fungus manipulates an unfortunate ant, filling its head with fungal cells and changing its muscles so the ant can grab a leaf in a death grip just when and where the fungus wants it. 

Research in a Thai rain forest has shown the fungi, a species of Ophiocordyceps, forces an infected ant to wander drunkenly over the forest's low leaves before clamping its jaws around the main vein on the underside of a leaf in an ant zombie graveyard. [Mind Control: Gallery of Zombie Ants]

By watching 16 infected ants bite down, the researchers found that their last bites took place around noon, indicating they are synchronized to either the sun or a related cue, like temperature or humidity.

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