(dramatic music) (music stops) (trap snapping) - Some may say that
that rat had it coming. - But let's reconsider the
rat for a moment, shall we? (laser sound) (liquid drop) (techno music) - [Woman] Rats, like humans, are one of the most resilient mammal
species on the planet, and while they've long been maligned for their disease vector shenanigans, these unlovable scamps don't
get the respect they deserve. So let's reconsider the rat with five surprisingly human
traits that rats exhibit. - [Man] Number one, rats laugh. It was neuroscientist Jaak
Panksepp and colleagues who figured out when rats were frolicking or anticipating playing with other rats, they emitted unique 50 kilohertz chirps. And one thing lead to another, and well, before you know it, researchers were tickling
rodents with what they call somatosensory stimulation. - And because laughter is a
stable, temperamental trait, it can be selected for. Which means, you guessed it, scientists created a strain
of tickle-loving rats. - Number two, rats think about thinking. We humans aren't the only naval-gazers. A 2007 study by researchers
at the University of Georgia used food as motivator
to get rats thinking about the things they didn't know and things they did. - The rats were trained to press one lever when they heard a short burst of static, and another lever for
a long burst of static. If they pushed the correct lever, well, they were rewarded with a handsome sum of food pellets. - If they pushed the wrong
one, they got nothing. They also learned that they
could get half the reward without making choice, just by sticking their
face into a food trough. - Simple enough, except that the craft researchers started to mix up the lengths of noises, which made it more difficult
for the rats to classify the mid-range lengths of noise. - And here's where thinking
about thinking comes in. When the rats were uncertain
about their knowledge, they'd cut their losses, essentially admitting they didn't know, and go for the smaller reward
by not making a choice. - Number three, rats feel empathy. While some may take issue with describing rats as empathetic, the fact is that when a caged mate is trapped in a restrainer, a rodent will heroically try to free it, which makes sense when you
think of how social rats are, and the need for cooperation to survive. - This study and others
conducted by neuro-biologists from the University of Chicago demonstrate that the rats not only help their own cage mates, but also rats from other strains that were essentially strangers. - Number four, like humans,
rats take over large cities. Nearly all major cities have
vast underground networks of thriving communities of rats living off the discarded
largess of humans. - Rattus norvegicus showed up on the New York City scene in the 1800s, and has made itself so ubiquitous, that its very presence is
one of the defining features of New York City. They successfully live off
the detritus of humans. Simply follow the droppings
and you'll find evidence, gnawed holes between walls
and bricks in buildings that are just some of
their outlaw pathways. - Number five, rats
contribute to science a lot. Okay, rats aren't exactly volunteering, but because they're small, they reproduce easily, and their genetic, biological,
and behavior characteristics closely resemble those humans, well, they are ideal to study. In fact, 95% of all lab
animals are mice and rats, according to the Foundation
for Biomedical Research. - Here are just a few of the contributions they'd put on their
resumes if they had one. Used for experiments in
cases of hypertension, diabetes, cataracts, obesity, seizures, respiratory problems, deafness, Parkinson's disease, Alzheimer's disease, cancer, cystic fibrosis, HIV and AIDS, heart disease, muscular dystrophy, and spinal cord injuries. - Pretty impressive. With all this in mind, let us now dwell on the quote
in this article from Wired, given by neurobiologist Peggy Mason. "I'm perfectly happy
thinking of myself as a rat with a fancy neocortex." - Hey, if you enjoyed this video, be sure to check out these
three videos as well. - And don't forget to visit us at StuffToBlowYourMind.com. - Animals, they're amazing, right? They can do all sorts of
strange, fascinating things, and some even have superpowers. In a new study from
the University of Utah, mother mice who competed for mates in a promiscuous environment went on to have sexier sons. - Humans are pretty weird animals. Let me count the ways, right? But our nonhuman compatriots display weird behaviors of their own, including some you might
think of as being human-only. (peaceful chord)
