By Jayalakshmi K
Originally published June 8, 2015
Humans probably inherited morality rather than invented it, suggests an experiment showing that rats can be as morally strong as humans.
The rodents tend to help out fellow rats, even in situations where they do not stand to lose anything by refusing help.
This demonstration of prosocial behaviour seen in the new experiment led the researchers to suggest biological mechanisms probably evolved to keep a group of individuals together.
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