SeaWorld Commemorates Five Years Since the First Successful Rescue and Rehabilitation of an Endangered Cook Inlet Beluga Calf PR Newswire SAN ANTONIO, March 8, 2023 Rescued in 2017 at approximately two weeks of age, Tyonek is the first Cook Inlet beluga calf to be successfully rescued and rehabilitated Cook Inlet belugas are a geographically isolated and endangered population whose numbers continue to decline in the wild and are one of NOAA Fisheries' " Species in the Spotlight " Rescue and...