CHICAGO — A beluga whale named Peekachu died at Shedd Aquarium in Chicago on August 25, 2026. The 23-year-old female passed away while caretakers attempted to rehydrate her after blood tests indicated she was dehydrated.

Shedd Aquarium officials said they collected blood samples from Peekachu after she was not consistently eating her full diet. Staff were providing her with medicine and fluids when she died. Peekachu was blind in one eye and had difficulty socializing with other whales.

Peekachu was one of eight beluga whales moved from Marineland of Canada to Shedd Aquarium this summer. Four whales arrived in July, and four, including Peekachu, arrived in August 2026. The whales were transported in custom-made slings and temperature-controlled containers.

The Canadian government approved a plan to export Marineland's whales to Shedd Aquarium and four other marine parks in January 2026. The federal government had previously blocked the sale of Marineland's animals to an aquarium in China. Marineland park closed in 2024.

Prior to closure, it housed 30 beluga whales and four dolphins. Provincial government data shows 20 animals, including 19 belugas and one killer whale, have died at Marineland since 2019.

Shedd Aquarium stated it is committed to sharing a necropsy report of Peekachu when available. Marineland's remaining whales and dolphins are scheduled to move to Georgia Aquarium, SeaWorld San Antonio, SeaWorld San Diego, and Oceanografic Valencia.

Timeline

2019: Start of period for provincial government data on animal deaths at Marineland. January 2026: Canadian government approves plan to export Marineland's whales to Shedd Aquarium and four other marine parks. August 2026: Four whales, including Peekachu, moved from Marineland to Shedd Aquarium. August 25, 2026: Peekachu dies at Shedd Aquarium while receiving care for dehydration.

What's New

Later reporting established that Peekachu was one of eight beluga whales rescued from Marineland of Canada, a closed marine park in Niagara Falls, Ontario, and she arrived at Shedd Aquarium earlier in August 2026. Additional details identified Peekachu as a 23-year-old female beluga whale who arrived at Shedd Aquarium with three other belugas earlier in August 2026 as part of a rescue effort from Marineland of Canada. Shedd Aquarium announced Peekachu’s death on Wednesday, August 26, 2026, stating that she had been under care after concerns about her dehydration and that she passed away suddenly on August 25, 2026.

Further accounts noted that Peekachu died suddenly on August 25, 2026, while Shedd Aquarium staff were providing her with medicine and fluids. Shedd Aquarium officials said they collected blood samples from Peekachu after she was not consistently eating her full diet, and the results raised concerns that she was dehydrated and needed supportive care. Contextual reporting added that the 2021 Mystic Aquarium beluga deaths led to increased scrutiny of Marineland’s animal welfare practices, with the Canadian government later citing unsanitary conditions as a reason for its 2024 closure. It was also reported that Shedd Aquarium’s animal care team includes Andrew Pulver, who previously served as vice-president of animal care at the Toronto Zoo and has overseen multiple high-profile marine mammal rescues in North America. Provincial government data obtained via freedom-of-information laws reveals 20 animals (19 belugas and one killer whale) died at Marineland since 2019, with causes including illness and aging.

Why It Matters

The death of Peekachu occurs within a broader pattern of mortality at Marineland, where provincial records indicate 20 animals have died since 2019. The closure of the park in 2024 followed years of scrutiny regarding animal welfare practices, including citations of unsanitary conditions by the Canadian government. The transfer of the remaining beluga population to facilities in the United States and Europe represents the final dispersal of animals from the Niagara Falls site.

Shedd Aquarium has committed to releasing a necropsy report, which will provide clinical details regarding the cause of death. The event shows the challenges associated with relocating mature marine mammals, even with specialized transport methods such as custom-made slings and temperature-controlled containers. The timeline of events spans from the initial regulatory approvals in early 2026 to the recent arrivals and subsequent medical interventions.