A beloved snow leopard at Hertfordshire Zoo has sadly passed away.

The Herts zoo, formerly known as Paradise Wildlife Park, today announced the passing of Panja on January 27 after a short illness.

Snow leopards are an endangered species, and Panja was one of the world's most famous big cats after becoming a viral sensation on social media alongside partner Jessie.

St Albans & Harpenden Review: Snow leopard Panja at Hertfordshire Zoo.Snow leopard Panja at Hertfordshire Zoo. (Image: Paradise Wildlife Park)

A statement from the zoo said: "With heavy hearts, we are devastated to share the news of the passing of our much-loved snow leopard, Panja, here at Hertfordshire Zoo.
 
"On 27th January, after a brief illness, our dedicated veterinary team made the compassionate decision to peacefully put him to sleep."

Hertfordshire Zoo director Tyler Whitnall added: "With profound sadness, we announce the loss of Panja, the snow leopard.

"Days like today impact the entire zoo community deeply, highlighting the pivotal role of animal conservation to securing their survival for future generations."
 

Male snow leopard Panja has held a central role within the Hertfordshire Zoo family since his arrival in 2013, having arrived from a Czech Republic zoo.

St Albans & Harpenden Review: Snow leopard Panja at Hertfordshire Zoo.Snow leopard Panja at Hertfordshire Zoo. (Image: Paradise Wildlife Park)

He was an essential part of the European Breeding Programme, an initiative dedicated to safeguarding and nurturing the future of these majestic big cats.

His presence swiftly won the hearts of zoo staff and visitors alike.

Panja and the wildlife park's other snow leopard, Jessie, captured the hearts of millions around the world with their antics which went viral on social media. 

St Albans & Harpenden Review: Snow leopard Panja at Hertfordshire Zoo.Snow leopard Panja at Hertfordshire Zoo. (Image: Paradise Wildlife Park)

A zoo spokesperson said: "Born in 2011, Panja joined our ranks to further the cause of conservation.

"In 2015, he was joined by his beloved companion, Jessie, and their exceptional bond became a global sensation, captivating millions through social media.

St Albans & Harpenden Review: Snow leopards Panja and Jessie at Hertfordshire Zoo.Snow leopards Panja and Jessie at Hertfordshire Zoo. (Image: Paradise Wildlife Park)

"Together, they became a dynamic duo, captivating the hearts of countless individuals worldwide. CCTV footage from their den offered glimpses of tender moments, including cuddles and affectionate moments.

"Panja, renowned for his calm personality, discovered his playful side in Jessie's company, forming a distinctive and heart-warming partnership.

"He displayed a cautious demeanour in new surroundings, often allowing Jessie to take the lead. Despite his more reserved nature, all who encountered him were charmed by his gentle character.

"While not the most exuberant participant in enrichment activities, he displayed a preference for intriguing scents strategically placed within his habitat, particularly those with a more potent aroma."

St Albans & Harpenden Review: Snow leopard Panja has passed away at Hertfordshire ZooSnow leopard Panja has passed away at Hertfordshire Zoo (Image: Paradise Wildlife Park)
 
Their favoured pastime was an animated game of chase around their habitat, with the zoo's cameras documenting their endearing and amusing interactions daily.

"Panja's substantial online following elevated him to the role of an extraordinary ambassador for his species, cultivating affection not only among our zoo visitors but also within a global audience deeply passionate about the welfare of big cats," added a zoo spokesperson.

As conservation advocates, Hertfordshire Zoo supports The Snow Leopard Trust, who lead on snow leopard conservation across five Central Asian countries.

Their work is fundamental in protecting the species in the wild for future generations.