Question: Who was the only trainer killed by an animal, in the United States chain of marine mammal parks, oceanariums, animal theme parks, and rehabilitation centers?

<P0-S0>  She worked with orcas at SeaWorld Orlando for fifteen years, including a leading role in revamping the "Shamu" show, and was SeaWorld's poster girl. <P0-S1>  She was killed by an orca, Tilikum, becoming the only SeaWorld trainer killed by an animal. <P0-S2> Dawn Therese Brancheau (née LoVerde, April 16, 1969 – February 24, 2010) was an American senior animal trainer at SeaWorld. <P0-S3>  However, her death was the third fatality associated with Tilikum, and many other trainers have been seriously injured by orcas. <SEP> <P1-S0> The Marine Mammal Protection Act (MMPA) was the first act of the United States Congress to call specifically for an ecosystem approach to wildlife management. <P1-S1>  It was signed into law on October 21, 1972 by President Richard Nixon and took effect 60 days later on December 21, 1972. <P1-S2>  MMPA prohibits the "taking" of marine mammals, and enacts a moratorium on the import, export, and sale of any marine mammal, along with any marine mammal part or product within the United States. <P1-S3>  The Act defines "take" as "the act of hunting, killing, capture, and/or harassment of any marine mammal; or, the attempt at such." <P1-S4>  The MMPA defines harassment as "any act of pursuit, torment or annoyance which has the potential to either: a. injure a marine mammal in the wild, or b. disturb a marine mammal by causing disruption of behavioral patterns, which includes, but is not limited to, migration, breathing, nursing, breeding, feeding, or sheltering." <P1-S5>  The MMPA provides for enforcement of its prohibitions, and for the issuance of regulations to implement its legislative goals. <SEP> <P2-S0>  The parks feature killer whale, sea lion, and dolphin shows and zoological displays featuring various other marine animals. <P2-S1>  There are operations located within the United States in Orlando, Florida; San Diego, California; San Antonio, Texas; later outside the United States such as Abu Dhabi, United Arab Emirates; and previously Aurora, Ohio. <P2-S2>  On March 5, 2007, SeaWorld Orlando announced addition of the Aquatica water park to its adventure park family, which already includes SeaWorld and Discovery Cove. <P2-S3> SeaWorld is a United States chain of marine mammal parks, oceanariums, animal theme parks, and rehabilitation centers owned by SeaWorld Entertainment (one park will be owned and operated by Miral under a license). <SEP> <P3-S0> SeaWorld San Antonio is a 250 acre marine mammal park, oceanarium, and animal theme park, located in the Westover Hills District of San Antonio, Texas. <P3-S1>  It is the largest of the three parks in the SeaWorld chain owned by SeaWorld Entertainment, and the world's largest marine-life theme park. <P3-S2>  It also has a water park called Aquatica on the separate end of it. <P3-S3>  It has many shows in the summer. <P3-S4>  The other SeaWorld parks are located in San Diego, California, Orlando, Florida, and one will soon be located in Abu Dhabi, UAE under separate ownership. <P3-S5>  It is a member of the Alliance of Marine Mammal Parks and Aquariums (AMMPA) and is accredited by the Association of Zoos and Aquariums (AZA).