Cristina and Owen in a shot from the October 14, 2010 episode of Grey's Anatomy. The title? "Can't Fight Biology."
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Owen Hunt in "Can't Fight Biology." What a handsome fella.
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Cristina and Owen on Grey's Anatomy. They're married ... now what?
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Cristina looks alone and lost in thought. Tough decisions await her in "Can't Fight Biology."
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Cristina in a shot from "Can't Fight Biology." The episode airs October 14, 2010.
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Sorry, Meredith and Derek are not married. The Post-It does not count. However, they are so cute together and we're sure they will stay together for life.
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Does it get any better? Der on Mer? We think not.
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Why does no one ever say it that way? Only the reverse? Just asking.
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Grey's Anatomy Season 7 Episode 4 Quotes

(to Meredith) You know this isn't normal.

Derek

Biology determines much of the way we live. From the moment we're born we know how to breathe and eat. As we grow older new instincts kick in. We become territorial. We learn to compete. We seek shelter. Most important of all, we reproduce. Sometimes biology can turn on us though. Yeah, biology sucks sometimes.

Meredith

Grey's Anatomy Season 7 Episode 4 Music

  Song Artist
Until the last falling star Until The Last Falling Star Matthew Perryman Jones iTunes
Tumblin down Tumblin Down Jenna Andrews iTunes
Song Further Correatown iTunes