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In this photo taken Tuesday, Oct. 20, 2009, horse trainer Karen ...

Mon Nov 2, 5:57 PM ET

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In this photo taken Tuesday, Oct. 20, 2009, horse trainer Karen Murdock plays with her horse, Lukas, in Walnut, Calif. Lukas, a 16-year-old, 1,200-pound Thoroughbred gelding, and Murdock have been together for six years. The horse has a Web site, is a star on Facebook, YouTube and Twitter and has been on TV. He and Murdock get up to 200 e-mails a day.

(AP Photo/Damian Dovarganes)