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Posted on 08/17/2010 7:17:15 PM PDT by Cardhu
Earliest evidence of fungus that takes over ants' behaviour for its own ends found by scientists.
The oldest evidence of a fungus that turns ants into zombies and makes them stagger to their death has been uncovered by scientists.
The gruesome hallmark of the fungus's handiwork was found on the leaves of plants that grew in Messel, near Darmstadt in Germany, 48m years ago.
The finding shows that parasitic fungi evolved the ability to control the creatures they infect in the distant past, even before the rise of the Himalayas.
The fungus, which is alive and well in forests today, latches on to carpenter ants as they cross the forest floor before returning to their nests high in the canopy.
The fungus grows inside the ants and releases chemicals that affect their behaviour. Some ants leave the colony and wander off to find fresh leaves on their own, while others fall from their tree-top havens on to leaves nearer the ground.
The final stage of the parasitic death sentence is the most macabre. In their last hours, infected ants move towards the underside of the leaf they are on and lock their mandibles in a "death grip" around the central vein, immobilising themselves and locking the fungus in position.
"This can happen on mass. You can find whole graveyards with 20 or 30 ants in a square metre. Each time, they are on leaves that are a particular height off the ground and they have bitten into the main vein before dying," said David Hughes at Harvard University.
The fungus cannot grow high up in the canopy or on the forest floor, but infected ants often die on leaves midway between the two, where the humidity and temperature suit the fungus.
(Excerpt) Read more at guardian.co.uk ...
Wow, is that Kevin Bacon? There was a time when he’d take any part. ;’)
This sounds like the ants that caused the financial crisis. Slow sneaky death.
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I knew that was coming as soon as I read the article LOL.
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