Russian UAV teams on the Ukraine-Russia front have released a video stating that there are too many rats on the frontline, and the stored UAVs have been bitten by rats. It can be seen that the two assembled "Lightning"-2 fixed-wing suicide drones have many holes bitten into their bodies, and the wires connecting the cameras have also been chewed off.
Rats chewing on equipment on the frontline is not due to a lack of food, but rather their need to wear down their teeth. Rats' incisors keep growing continuously, and if they are not worn down, their teeth will become too long, causing them to be unable to eat and eventually starve. Therefore, rats have an innate and strong instinct to gnaw on various hard or semi-hard materials to shorten their teeth.
Original: www.toutiao.com/article/1843206003113995/
Statement: This article represents the views of the author himself.