Heigl Researches Girl-on-Tiger Kiss

11/11/2008 8:15 AM PST BY TMZ STAFF
Since "Grey's Anatomy" abruptly ended Sara Ramirez and Brooke Smith's lesbian storyline last week, the show's writers could improve ratings by pairing Katherine Heigl ... with a large cat. Meow!

Heigl took time out from chain-smoking to visit an animal rescue center in L.A. on Sunday.

We smell an Emmy.