http://blogs.sundaymercury.net/weirdscience/

Zombie parasites targeted ancient ants

By Daniel Smith on Aug 30, 10 10:21 AM

Ants were being turned into zombies by a mind-control fungus 48 million years ago, scientists have learned.

The evidence is an ancient fossilised leaf bearing unmistakable traces of a natural horror story.

Dr David Hughes, from the University of Exeter, who studied the find, said: "This leaf shows clear signs of one well-documented form of zombie parasite, a fungus which infects ants and then manipulates their behaviour."

The parasite, Ophiocordyceps unilateralis, appears to take over the minds of infected ants.

The insects are forced to leave their nests and head for a leaf that provides ideal conditions for the fungus to reproduce.

On arrival the ants are compelled to bite hard on a major vein of the leaf before dying. The "death grip" leaves the ant in a perfect position for the fungus to grow and release its infectious spores.

The death grip bite leaves a very distinctive mark, and it was this scientists discovered on the 48-million-year-old leaf specimen from the Rhine Rift Valley in Hesse, Germany.

"The evidence we found mirrors very closely the type of leaf scars that we find today, showing that the parasite has been working in the same way for a very long time.

"This is, as far as we know, the oldest evidence of parasites manipulating the behaviour of their hosts and it shows this parasitic association with ants is relatively ancient and not a recent development.

"Hopefully we can now find more fossilised evidence of parasitic manipulation. This will help us shed further light on the origins of this association so we can get a better idea of how it has evolved and spread."

Weird Science Factoid: Thirteen per cent of the human population reside in deserts.

Leave a comment


Type the characters you see in the picture above.

This is to help prevent spamming and confirm you are a human

 

Authors

Daniel Smith

Daniel Smith - a long time ago, in a galaxy far away just north of Watford, Daniel fancied himself as a scientist but turned out to be the worst scientist since that bloke who mapped out all those canals on Mars that turned out to be scratches on his telescope's lens. Luckily, he is now not working on the Large Hadron Collider inadvertently creating a black hole that would swallow the world but is safely behind a desk writing this blog, bringing you the fantastical underbelly of nature... weird science.

Keep up to date

Sponsored Links