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Oregon Zoo Preps For Elephant Birth
Portland, Oregon (CNN) - After nearly two years, the wait for a baby elephant at the Oregon Zoo is almost over.
Zoo officials say Asian Elephant Rose-Tu is close to delivering her second calf.
Rose-Tu has been pregnant a long time, since February 20-11.
Elephants carry their babies longer than any other animal, between 20 to 22 months.
Rose-Tu is expected to give birth any day now.