Your data on MRCVSonline
The nature of the services provided by Vision Media means that we might obtain certain information about you.
Please read our Data Protection and Privacy Policy for details.

In addition, (with your consent) some parts of our website may store a 'cookie' in your browser for the purposes of
functionality or performance monitoring.
Click here to manage your settings.
If you would like to forward this story on to a friend, simply fill in the form below and click send.

Your friend's email:
Your email:
Your name:
 
 
Send Cancel

Colchester Zoo announces death of lioness
"Naja was truly one of a kind" - Emma, carnivore team leader at Colchester Zoo.
Naja had been with the zoo since 2010.

Colchester Zoo has confirmed the death of Naja, a lioness who lived in the Lion Rock enclosure.

Naja, who lived with her cousin Bailey, a male lion, was euthanised on 4 March 2022 after her health rapidly deteriorated. 

The Animal Care Team noticed that Naja wasn't feeling well, and she underwent a full veterinary examination, which revealed that she had severe heart disease and a possible thrombosis. 

Two days later, Naja deteriorated and was unable to be stabilised, so the Animal Care Team made the difficult decision to have Naja euthanised. 

In a statement online, Colchester Zoo said: “It’s always hard losing one our animals and it’s even harder when that animal has become a big personality within the Colchester Zoo family. 

“Not only will all the staff at Colchester Zoo miss Naja, but she also leaves behind our male lion, Bailey. Bailey and Naja were cousins along with Naja’s sister, Malika, who passed away back in 2020. 

“All three lions had a strong bond, with the bond between Bailey and Naja made even stronger with the loss of Malika. Naja arrived at Colchester Zoo in 2010, along with Bailey and Malika, and since became a firm favourite amongst visitors with many photographers capturing her spirit on camera.”

Emma, the carnivore team leader at Colchester Zoo, commented: “Naja was truly one of a kind. Her personality and character set her aside from any other animal we’ve had the pleasure to work with.

“Naja had a gentle side where she would interact with her keepers but very quickly changed when food was available! It never gets any easier losing an animal you’ve cared for and Naja will be sorely missed by the team! Our main priority now is to make sure Bailey adjusts to life on his own.”

Become a member or log in to add this story to your CPD history

Webinar to explore AMR in vet dentistry

News Story 1
 The WSAVA has invited veterinary professionals to a webinar on responsible antibiotic usage in dentistry.

On 19 November 2025, at 1am, Dr J Scott Weese and Dr Brooke Niemiec will share the latest advice for antimicrobial use. They will present research on oral bacterology, and explain how attendees can choose appropriate antibiotics.

The session will cover pre-, intra- and post-operative guidelines, with recommendations for various pathologies.

The webinar is designed to support veterinary professionals to make informed decisions and tackle antimicrobial resistance.

Attendees can register here

Click here for more...
News Shorts
Dechra launches checklist for veterinary sustainability

Global animal health specialist Dechra has announced the world's first Veterinary Green Theatre Checklist (VGTC) to help make surgery more sustainable.

Endorsed by leading veterinary organisations, including the BEVA, BVNA and RCVS Knowledge, the checklist is designed to reduce the environmental footprint of veterinary care, while supporting better animal health outcomes.

The checklist was launched at the World Congress of Veterinary Anaesthesia and Analgesia in Paris and will be followed by an internal training and awareness campaign. For more information, visit dechra.com