Shamu was the first orca to survive more than 13 months in captivity and was the star of a very popular killer whale show at SeaWorld San Diego in the mid - late 1960s. She was the fourth killer whale (orca) ever captured (the second female) and was the third orca ever displayed in a public exhibit. After her death in 1971, the name Shamu continued to be used in SeaWorld "Shamu" orca shows for different killer whales in different SeaWorld parks.
Read more about Shamu: History