Rodents aren’t heavy enough to trigger most devices, made in the last 60 years.
PIGS however.....have MANY advantages in this application.
Is that a feature or a bug?
I mean, if the rat can locate a mine, it can be triggered some other way. And, if the rat is smart enough to be recalled from the device, he can be reused.
Pigs? I think those animals have more value than the sharia loving muslims. Use the muzzies. They love blowing themselves up anyway.