What Happened to National Zoo Lion Shera Euthanasia?
Shera, a beloved 21-year-old African lioness at the Smithsonian's National Zoo, was humanely euthanized on May 7, 2026, due to a significant decline in her health and mobility caused by age-related conditions. Her passing marked the end of a life that saw her contribute significantly to African lion conservation and survive a severe COVID-19 infection in 2021 that nearly led to her earlier euthanasia.
Quick Answer
Shera, the 21-year-old African lioness at the Smithsonian's National Zoo, was humanely euthanized on May 7, 2026. The decision was made by animal care teams after her age-related medical conditions, including chronic osteoarthritis, liver, and kidney disease, worsened and severely impacted her quality of life and mobility. She was a significant contributor to the Species Survival Plan, siring multiple cubs, and had previously overcome a critical COVID-19 infection in 2021 that left her with permanent kidney damage.
📊Key Facts
📅Complete Timeline10 events
Born in South Africa
Shera, an African lioness, was born in a private reserve in South Africa.
Arrives at Smithsonian's National Zoo
Shera arrived at the National Zoo along with her sister Nababiep and male lion Luke, as part of a breeding recommendation from the Association of Zoos and Aquariums' Species Survival Plan (SSP).
Gives Birth to First Litter of Cubs
At five years old, Shera gave birth to her first litter of four African lion cubs, contributing to the Species Survival Plan.
Second Litter of Cubs Born
Shera, along with Luke, produced a second litter of cubs, further increasing their contribution to the African lion population in North American zoos.
Contracts COVID-19 and Develops Kidney Disease
Shera, then 17 years old, became critically ill after contracting the Delta variant of COVID-19, leading to severe kidney failure and discussions about euthanasia. She was the most critically ill of the nine great cats infected at the zoo.
Recovers from Acute COVID-19 Infection
After intensive veterinary care, Shera began eating and drinking on her own, showing significant improvement. While her kidneys were permanently affected, she was deemed to be recovering.
Highlighted in Article on Geriatric Lion Care
Shera, along with Luke and Naba, was featured in a Smithsonian Magazine article detailing the specialized care provided to aging lions at the National Zoo, including voluntary training for health exams.
Sister Nababiep Euthanized
Shera's sister, Nababiep (Naba), was humanely euthanized at 18 years old due to chronic renal disease and a brain lesion, marking another loss for the pride.
Mate Luke Euthanized
Shera's longtime mate, Luke, was humanely euthanized at 17 years old after a long battle with spinal disease and the discovery of liver masses, further changing the pride dynamics.
Humanely Euthanized at 21 Years Old
Shera was humanely euthanized by the National Zoo's animal care team due to a significant decline in her mobility and overall health from chronic age-related conditions, including osteoarthritis, liver, and kidney disease.
🔍Deep Dive Analysis
Shera, an African lioness who resided at the Smithsonian's National Zoo, was humanely euthanized on May 7, 2026, at the age of 21. Her passing marked the end of a long life, exceeding the typical lifespan of African lions in human care, which is around 17 years.
The decision to euthanize Shera was made by the zoo's animal care teams and veterinarians after a recent and significant decline in her mobility and overall health. She had been receiving treatment for several chronic conditions common in elderly lions, including liver and kidney disease, muscle loss, and severe osteoarthritis. In the weeks leading up to her euthanasia, staff observed that Shera had become weaker, slower, and less stable, raising concerns about her ability to safely navigate her habitat, which included stairs and rocks.
This was not the first time Shera's life hung in the balance. In September 2021, at 17 years old, she contracted the highly contagious Delta variant of COVID-19. The infection led to acute renal failure, and zoo veterinarians seriously considered euthanasia at that time. Although she eventually recovered from the acute phase, her kidneys were permanently affected, and she was expected to never fully recover kidney-wise. This incident highlighted the vulnerability of big cats to the virus and the intensive care required to manage their health.
Born in South Africa in 2004, Shera arrived at the National Zoo in October 2006 as part of a breeding recommendation through the Association of Zoos and Aquariums' Species Survival Plan (SSP). Alongside her mate, Luke, and sister, Nababiep, she played a crucial role in the conservation of African lions, producing two litters of cubs. Collectively, Shera, Luke, and Nababiep sired 13 cubs, and today, Shera has nearly 50 descendants living in zoos across North America, contributing significantly to the genetic diversity of the captive population.
Shera was affectionately known as the 'queen bee' of the zoo's Great Cats exhibit, forming strong bonds with her caretakers and being adored by staff and visitors alike. Her sons, Shaka and Jumbe, remain at the National Zoo. Her passing follows that of her sister Nababiep in September 2022 and her mate Luke in October 2022, both also due to age-related health issues. Her long life and contributions underscore the dedication of zoo staff to geriatric animal care and species conservation.
What If...?
Explore alternate histories. What if National Zoo Lion Shera Euthanasia made different choices?