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Rats choose carefully who they spend time with, according to a new study published today. Published by researchers from the Universities of Portsmouth and Lincoln, the study found that male rats have preferred partners in their groups and they decide who to avoid, too. Previous research found that female rats didn’t form friendships with other females, so this paper’s findings are surprising. Dr Leanne Proops, from the University of Portsmouth’s Department of Psychology, said: “Discovering that male rats don’t associate with other rats randomly, but seek out their preferred cage mates and actively avoid others, shows that rats are similar in this respect to other species like birds, primates and bats.”

Leanne proopsTeresa romeroUniversity of portsmouth department psychologyUniversity of lincoln school life sciencesLife sciencesதெரசா ரொமெரோபல்கலைக்கழகம் ஆஃப் போரதிஸ்மௌத் துறை உளவியல்பல்கலைக்கழகம் ஆஃப் லிங்கன் பள்ளி வாழ்க்கை அறிவியல்வாழ்க்கை அறிவியல்