The largest rat in the world is the African giant rat, or the African giant rat for short. They are no different from ordinary rats in appearance, but are much larger. The largest African giant rat can grow to more than 90 centimeters, which is equivalent to the height of a 5-year-old child. Their lifespan is also relatively long, and they can live to about 8 years old. Moreover, its sense of smell is very sensitive and its intelligence is high. It can be trained to become a good helper for humans.

Uses of the African giant rat

1. The African giant rat has a very high IQ, even smarter than the flower rat. Its eyesight is very weak, but its sense of smell is very strong. Taking advantage of this, many countries such as Belgium, Mozambique, the Philippines, and Cambodia have put Gambian rats into mine clearance tasks, and called them "mine clearance teams."

2. A giant rat can clear a 100-square-meter minefield in 20 minutes, which is countless times more efficient than a human being. The African giant rat has planted 2,500 landmines and 14,000 unexploded bombs in countries such as Mozambique. It is a veritable "hero rat".

3. The giant rat itself is immune to tuberculosis bacteria and can detect tuberculosis through human saliva with an accuracy of 86.6%.