Manga: 2 volumes (2009-ongoing) *Light novel volumes ?-? or Anime episodes ?-?
Anime: 24 episodes (2010) *Light novel volumes 1-3
All have similar storylines, the anime sparing some gorier details of the characters, right?
manga anime comparison:
Spoiler (highlight to view)
http://kokuun.wordpress.com/2010/02/11/durarara-manga
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The monkey is reaching for the moon in the water.
Until death overtakes him, he’ll never give up.
If he’d let go the branch and disappear in the deep pool,
The whole world would shine with dazzling pureness.