from the no-wonder-my-rat-gladiator-farm-never-took-off dept.
sciencehabit writes "Empathy lets us feel another person's pain and drives us to help ease it. But is empathy a uniquely human trait? For decades researchers have debated whether nonhuman animals possess this attribute. Now a new study shows that rats will free a trapped cagemate in distress. The results mean that these rodents can be used to help determine the genetic and physiological underpinnings of empathy in people."
"A complex system that works is invariably found to have evolved from a simple
system that worked."
-- John Gall, _Systemantics_