Is her twin, who is still in Omaha, the oldest living polar bear in American zoo now?
I just noticed this question from awhile back. Patches' twin, Fanny (Bam Bam) is not the oldest polar bear in the US zoo population. That belongs to Ulu, the last remaining polar bear at the San Francisco Zoo at the age of 34.
SIDE NOTE: I added two links about the zoo's 20 year master plan at the bottom of page 8. Because this post was on the top of page 9, I was afraid people would miss the previous post.