Friday, September 18, 2009

halfback

A halfback or tailback is an offensive position in American, and college football who lines up in the backfield and generally is responsible for carrying the ball on run plays.

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synanthrope

 A synanthrope (from ancient Greek σύν sýn "together, with" and ἄνθρωπος ánthrōpos "man") is an organism that evolve...