Record-Breaking Mine Detection Rat Ronin Enters Guinness World Records

Fri 4th Apr, 2025

In a remarkable achievement, Ronin, the mine detection rat from Cambodia, has set a new record by discovering the highest number of landmines and unexploded ordnance (UXOs) among his peers. This announcement was made on April 4th, coinciding with the International Day of the Rat.

Operated by the Belgian non-profit organization Apopo, Ronin has successfully identified 109 landmines and 15 UXOs since commencing his service in August 2021 in the Preah Vihear province. His outstanding performance has earned him the title of the most successful rat in Apopo's 25-year history, highlighting the vital role that these HeroRATs play in humanitarian mine clearance efforts.

Guinness World Records recognized Ronin's achievements, emphasizing the importance of overcoming prejudices associated with these animals. Adam Millward, the Chief Editor at Guinness, stated that records are sometimes about more than just milestones; they can also challenge stereotypes. The life-saving contributions of the HeroRATs and their handlers serve as a powerful reminder of the positive outcomes that can arise from human-animal collaboration.

HeroRATs, trained to detect landmines much faster than traditional metal detectors, are vital in regions still plagued by the remnants of conflict. Apopo currently employs over 300 HeroRATs worldwide, working diligently to locate explosive devices and prevent injuries or fatalities.

Ronin was born in a training facility in Morogoro, Tanzania, where he was introduced to a reward-based system that encourages him to recognize the scent of explosives. His training involves systematic work on a leash within a designated grid, where he indicates the presence of landmines by scratching the ground.

Phanny, Ronin's handler, expressed that the rat is not only an asset to the organization but also a valued companion. Apopo ensures that the rats work for only 30 minutes each day during the cooler morning hours, allowing them ample time to rest, play, and engage in natural behaviors.

Notably, Ronin has surpassed the achievements of the late Magawa, another renowned mine detection rat who passed away in January 2022 after locating 71 landmines and 38 UXOs. Magawa was honored in 2020 with a prestigious animal award from the PDSA, becoming the first rat to receive such recognition.

Cambodia remains one of the most heavily mined countries globally, with many explosive remnants dating back to the Khmer Rouge regime that began in 1975. The ongoing efforts of mine detection rats like Ronin play a crucial role in making these areas safer for residents.


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