Remembering Osiris, a Rescued Beluga Whale
We are disheartened to share that Osiris, a 26-year-old rescued female beluga that came to us in late July, has passed away. Her loss follows the recent passing of Jelly Bean, another rescued whale at Oceanogràfic Valencia last week.
From the time she arrived, Osiris remained a whale of clinical concern for our veterinary and animal care teams. Each rescued beluga came to Shedd with a distinct life history and health needs that could not be fully understood before their arrival. Osiris experienced periods of meaningful progress, both nutritionally and socially, but her overall condition remained closely monitored.
A few weeks ago, we shared how nutrition and hydration help inform our day-to-day care for the rescued belugas. Osiris was not as consistent an eater as some of the other whales, making it more challenging to ensure she received the calories, nutrients, and electrolytes she needed each day.
After receiving fluids, medication, and other supportive care, Osiris’s appetite improved, and she began eating more consistently. We also saw her commanding personality emerge and become more engaged with the other rescued whales.
Those were encouraging signs, but nutrition is only one measure of health, and in cases as complex as these, progress is rarely linear.
Our care team observed sudden changes this morning in both Osiris’s behavior and respiratory patterns. Respiratory rates are one of many measures we track closely and continuously, as changes can signal that an animal may need additional support.
The team moved Osiris to the medical habitat, so immediate care could be provided if needed. Her condition declined rapidly, and Osiris passed away despite lifesaving efforts by our veterinary and animal care teams.
What contributed to her passing is not yet known. Like many species, belugas can mask discomfort or underlying concerns that are not immediately visible. A full necropsy will be conducted, and we continue to await results from analyses related to our previous losses. We will share what we learn when those findings are confirmed.
The rescued belugas are still adjusting, and many continue to require close, individualized care. As we shared before, that remains true today. Our teams continue to monitor each whale around the clock, adapting care, habitats, and routines to meet their evolving needs.
When Shedd was asked to help with this rescue, we understood that these animals arrived with significant vulnerabilities and that the outcome for every individual could not be guaranteed. That uncertainty does not lessen the heartbreak of Osiris’s loss, or our responsibility to examine it with scientific rigor and open-hearted transparency.
For years, Shedd has been called upon when animals need specialized care, often at moments when the path ahead is uncertain. Rescue means meeting animals as they are, with the full weight of their histories and health needs, and bringing every available measure of expertise, resources, and attention to their care. That is what our teams have done for Osiris and every beluga entrusted to us.
Though Osiris was with us for far less time than we had hoped, her care was never measured by its length. We are grateful to everyone who has followed her story, supported this collective rescue, and continued to hold these whales close as their care moves forward.