Two beluga whales have died at the Shedd Aquarium in Chicago, according to a report from the Associated Press. The deaths come after two of the animals were recently rescued from a Canadian facility. The aquarium confirmed the loss of the two belugas, though it did not provide details on the cause of death. The rescued whales had been part of a conservation program in Canada before being transferred to Chicago. The incident has raised questions about the care and treatment of marine animals in captivity. Officials are currently reviewing the circumstances surrounding the deaths.