Rats have long been viewed as dangerous to humans, and not without reason, but rats can also help them. Here's a positive animal encounter idea:
https://www.apopo.org/en/what-we-do/...RoCf-0QAvD_BwE
The locales where this appears to be going on are somewhat exotic, by T2k standards, but perhaps some enterprising Pole (or other nationality) could start their own rat-assisted mine-detection enterprise.
Credit to my teenage daughter for bringing this to my attention.
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