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| | Discovery of Blood-Sucking Ant Species Scrambles Some Theories |
 | | His find, Fisher says, could offer a crucial key to understanding how ants have evolved and diversified from their ancestors, the wasps, tens of millions of years ago. |
 | | The new species, he said, shows how remarkably specialized their behavior has become - "a strange mixture of the primitive and the derived," he called it. |
 | | Ant species are currently divided into two sub-families, and the Adetomyrma somehow share characteristics of both groups, so the distinctions between them are unclear - another indication that the entire ant evolutionary tree may need to be redrawn, Fisher said. |
| www.sfgate.com /cgi-bin/article.cgi?file=/chronicle/archive/2001/01/15/MN138629.DTL (1005 words) |
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