"Vietnam is rich in bamboo rats, I did hear some veteran comrades who took part in the 79-year border counterattack say that, It is said that many wounded and sick people did not have time to withdraw from their positions and were bitten or even killed by bamboo rats. This has happened to both the Vietnamese army and our side. Moreover, bamboo rats also like to go out collectively to eat the bodies left over from the battlefield. Is it because swarms of bamboo rats attacked position 142? However, the size of bamboo rats is not large, so it seems a little inappropriate to say that they are "big rats". "I went on to ask.