Jenny Moxham
November 2012
When humans describe another human being as a rat, they usually mean that
the person is totally contemptible or despicable but a recent scientific
study has proved that rats certainly don't deserve to be maligned this way.
The study showed that, far from being contemptible, rats have extremely
worthy and meritorious attributes. They are, in fact, compassionate,
selfless and caring individuals who put the welfare of their fellow rats
ahead of their own personal enjoyment.
In the study at the University of Chicago, same-sex rats were housed in
pairs in the same cage for two weeks.
After this time one rat was allowed to run free, while the other was trapped
in a plastic restraining tube. The restraining device was designed so that
the free rat could liberate the trapped one, if it could figure out how to
tip over the door.
Most of the free rats circled their imprisoned peer, gnawing at the cage and
sticking their paws, noses and whiskers through any openings.
After a week of trial and error, 23 of the 30 rats in the experiment learned
to open the cage and free their peers by head-butting the cage door or
leaning their full weight against the door until it tipped over. (The door
could only be opened from the outside.)
The rodents showed no interest in opening empty cages or opening the doors
of cages containing toy rats, indicating that rescuing their friends was
their only goal.
Neuroscientist Peggy Mason decided to give them a tougher test. She placed
rats in a Plexiglass pen with two cages.
One cage contained another rat. The other contained five milk chocolate
chips - a favourite snack of these rodents.
The unrestricted rats could easily have eaten the chocolate themselves
before freeing their peers or been so distracted by the sweets that they
would neglect their imprisoned friends. -but they didn't.
Instead, most of the rats opened both cages and shared in the chocolate chip
feast.
If one of the rats had chosen to he could easily have blocked the opening of
the cage containing the chocolate and devoured it all himself - but this
never happened.
They all shared the food with their pals. Mason said that the free rats
typically took the chocolate out of the cage before eating it and that
sometimes the free rats placed the chocolate chips in front of, or very
near, their recently sprung peers, as if offering it to them
Surely now that we have this proof that rats are kind and compassionate
individuals who will do all in their power to prevent the suffering of their
peers we cannot possibly justify continuing to use them as mere "research
tools" in our laboratories.
If we continue to deliberately and heartlessly inflict pain on them despite
this new awareness, perhaps it's proof that these so called "lower" animals
are more kind hearted and altruistic than we humans are.