A peculiar incident has unfolded at the Mandai Wildlife Reserve in Singapore, involving a komodo dragon named Mario, who had to undergo a veterinary procedure after ingesting plush toys thrown into his enclosure by mischievous macaques. The zoo revealed the incident on social media, highlighting the interplay between managed wildlife and native animal populations.
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On March 2, Mandai Wildlife Group shared a video detailing how the unexpected veterinary emergency occurred. According to the zoo, a troop of macaques discovered a bag filled with soft toys, ultimately tearing it open and scattering the contents throughout Mario’s habitat. This sudden eruption of movement piqued the interest of the komodo dragon, known for his ambush hunting instincts.
Dr. Heng Yirui, deputy vice-president of veterinary healthcare and scientific programmes at the wildlife park, explained that the vibrant activity around him stimulated Mario’s predatory behaviour. “He instinctively went for these toys,” Dr. Heng noted in the video, revealing that Mario swallowed several plush items whole.

Within 24 hours of ingesting the toys, keepers grew increasingly concerned when Mario failed to regurgitate them. Such foreign bodies can create life-threatening intestinal blockages in reptiles, prompting the veterinary team to act swiftly. Initially, they attempted an endoscopic procedure aimed at retrieving the toys via Mario’s stomach. However, this effort proved challenging, resulting in only small strands of thread being removed after nearly 90 minutes of work.
Following the endoscopic failure, Dr. Heng opted for a more direct approach to the issue. “Trust me, it is difficult to grab onto these toys with all your might,” he stated. After considerable exertion, he successfully extracted the first plush toy and, needing assistance due to fatigue, managed to retrieve the second.
In total, two plush toys were successfully removed from Mario, averting the need for a more invasive surgical procedure. The following day, the veterinary team received promising news: Mario resumed his normal eating habits and was passing stool, indicating that no intestinal blockage occurred.
This incident stands out to the zoo as one of its more unusual challenges faced by the veterinary team. It has also reignited conversations about the cohabitation of managed species and local wildlife at Mandai, where various animals coexist in shared environments. Dr. Heng remarked, “Understanding that the macaques call Mandai home too underscores the necessity for us to learn to coexist with our local wildlife.”
Audience responses to the zoo’s announcement varied from sympathetic to light-hearted. “Oh poor Mario. Glad he’s ok,” remarked one viewer, while another quipped, “For the first time, it wasn’t the humans that caused trouble.” Such comments reflect the public’s engagement with the wildlife community and concern for the health of these creatures.
Mario is not just any komodo dragon; he holds a significant place in the zoo’s history as the first of his kind to successfully hatch in Asia outside of Indonesia. Thanks to diligent veterinary efforts, he has returned to his enclosure and is on the road to recovery.
This unusual event serves as a reminder of the complexities involved in wildlife management, especially when animals occupy overlapping spaces. The situation highlights both the curiosity of local wildlife and the responsibilities of institutions like Mandai Wildlife Reserve to ensure the safety and wellbeing of their residents, both managed and wild.
