Teresita Cajas closes her eyes at her 10th birthday party in Malibu, Calif., Saturday, Aug. 6, 2011. Reaching that first double-digit age of 10 is a milestone for any kid, but for Teresita, and her ... more 
Teresita Cajas closes her eyes at her 10th birthday party in Malibu, Calif., Saturday, Aug. 6, 2011. Reaching that first double-digit age of 10 is a milestone for any kid, but for Teresita, and her twin sister Josie, Guatemalan twins born conjoined at the head and who were separated in a surgery in 2002, it's cause for joyous celebration since they have repeatedly defied the odds against survival at all. (AP Photo/Jae C. Hong) less 
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Associated Press | Photo By Jae C. Hong
Sat, Aug 6, 2011 8:15 PM EDT