After her tank mate died last week, a Pacific white-sided dolphin named Helen is now the only surviving cetacean left at the Vancouver Aquarium.
Chester, the 3-year-old false killer whale who was Helen’s companion for over two years, died on Nov. 24 after falling ill just two days earlier. A necropsy report filed through the aquarium veterinary team states that he likely succumbed to a bacterial disease.
“It is with a deep sadness that we share the devastating loss of Chester early this morning,” the aquarium wrote on Facebook that day. “He was surrounded by his family and was kept very comfortable.”