In an experiment carried out by University of Chicago neuroscientists, pairs of rats that normally shared a cage were placed in a special area, where one was confined to a closed tube with a door that could be opened from the outside while the other remained able to roam around freely. The researchers observed that “the free rat acted more agitated when its cagemate was restrained, compared to its activity when the rat was placed in a cage with an empty restrainer...”
And not only that, but when the rats were offered two tubes — one of which contained their companion and the other a pile of chocolate chips — they were as likely to free the other rat first as they were to start by gobbling all the chocolate. There were also cases in which the rat retrieved the chocolate chips first but didn’t eat them until after freeing the other and sharing the chocolate with them.
Had these been Republican rats the free one would have taken all the chocolate chips, fouled the cage, and then tried to sell the other one back to the lab.
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