Another elephant is expected to arrive any day now at the Oregon Zoo.
Rose-Tu is about to give birth to her second calf.
Elephant curator Bob Lee told KATU that keepers are closely monitoring her and are ready to help, if necessary. They expect the birth should go easier than Rose-Tu’s first delivery in 2008 when she nervously stepped on the calf.
Lee says Rose-Tu should be having a calf every four to five years.