Rat
Rat. Mice. Shrew.
Know the behavioural patterns of rodents? Wanna wipe them out?
Easy peasy.
What you can do is just place a poisoned bait anywhere. The rat will bring it back to its’ nest for the babies. Silly cun.
They share. They eat. They die.
If the bait is not intended for the rat, then just don’t leave it out in the open.
Geddit?