Found in a severely weakened state in the Wadden Sea in 2010, Morgan was taken to the Dolfinarium Harderwijk and nursed back to health. Then, she was shipped to Loro Parque in the Canary Islands in late 2011, because officials said releasing her back into the ocean was too risky. See this post for more information about Morgan's history.
Animal advocates, spearheaded by orca expert Ingrid Visser, who has studied Morgan at length, and the Free Morgan Foundation, say that she is subject to frequent "aggression incidents," including bite marks and confrontations with other whales in the tank. Visser has also observed stereotypic behaviors and painful tooth problems she has from chewing on the tank's walls. You can read more about Morgan's disturbing conditions at Loro Parque here.
Morgan's small tank has also been criticized -- and the fact that she shares that tank with whales that are not members of her family. Animal advocates have also noted that Morgan is entirely separated from her family, who live in Norwegian waters -- though orcas form incredibly close bonds in their pods that usually last lifetimes. Activists say that Morgan could be returned to her family, who have been identified through acoustic calls in the waters off Norway.