Violent videos show apes may have sense of right and wrong

Apes paid more attention to film clips of an infant chimp being killed by its own kind than other acts of violence

Chimpanzees may have a sense of right and wrong that echoes human concepts of morality, a study has found.

Two groups of the apes paid more attention to film clips of an infant chimp being killed by its own kind than clips showing other acts of violence.