shark:blood

blood : leach

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Edit:

Leach
To empty or drain (blood).
To deprive or be deprived of something [i.e. blood].

http://www.yourdictionary.com/ahd/l/l0083600.html
http://dictionary.reference.com/search?q=leach
http://encarta.msn.com/encnet/features/dictionary/DictionaryResults.aspx?refid=1861625365

leach : leech?

leech : bandwidth

bandwidth : broadband

Broadband: transmition

transmission : SETI

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http://setiathome.ssl.berkeley.edu/

SETI : PETA

PETA : hamburger

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http://www.peta.org/index.asp
http://mtd.com/tasty/

hamburgen : pig

You know, that ham comes from somewhere.

Pig : Cow


"Hamburger" is a shortened way to say "Hamburg Sandwich" and refers to a beef patty.

Cow : milk

Oh, well; they're animals people kill for food(tm)

milk: got

got : money

money : broke

broke : my computer

My Computer : Desktop

Desktop : icons

icons : heros

heros: idols