Okay, I know, the Featured Creature is usually about animals a little more exotic than your average rat. We’ve lived with rats (some of us even voluntarily), we’ve used them extensively for a very long time as research subjects, we’ve helped them spread all over the world and destroy fragile island ecosystems… what more could there possibly be to say about rats? Well, I thought this week with our Featured Creature it might be fun to try something a little different and offer you a collection of interesting links for things you might not know about a well-known sort of creature. You might be surprised, for instance, with a few of rats’ less-publicized qualities and talents, like empathy and even altruism. A study published a few years ago showed that rats will free their captive brethren, if they’re able, even if there isn’t any sort of actual reward in it for them. They may even save the captive some of their food, which if you ask me is a clear signal of good feelings from any species. (I mean I could share my Cheetos with you, but signs point to no.) Rats will also remember who’s helped them before, and are more likely to help other rats who’ve helped them. They aren’t just helping each other, though; what’s got me really excited this week is how rats are helping us. Non-profit organization APOPO is training rats and their handlers to do incredibly important work: detecting tuberculosis, and searching out hidden landmines. Sure, they don’t do that work spontaneously, they didn’t just wander into a lab one day and ask to be pointed at the tuberculosis test samples. But they’re stunningly good at the work. A single Giant Pouched Rat can check more TB samples in ten minutes than a lab technician can manage in a day… and the rats have a better accuracy rate, too, which has resulted in many previously undiagnosed TB patients being able to get life-saving medical treatment. You can’t beat these rats for mine detection, either. They’re light enough that even if they step directly on a landmine, they won’t set it off, and they’ve proved to be more efficient than mine-detection dogs at doing the work.
Rats may be one of those species that is likely to not only to survive the apocalypse but probably thrive in the midst of it — in the UK, for instance, they’re dealing not just with giant “mega-rats” but mega-rats that are immune to rat poison — but in the present they’re not just pests or pets, they’re doing an awful lot to improve our world, too. And when the inevitable world-ending cataclysm occurs, I for one would like to welcome our new mega-rat overlords.