A TV show about 15 years ago. If you don't want to believe it, fine with me.
I've never heard such a claim, but I have heard similar claims made which are later completely disproven. One example of such a claim is chimp altruism by Carl Sagan in "Shadows of the Forgotten Ancestors." In fact this was disproven by Dr. Ian Gilby's study of meat sharing as a hedonistic/selfish attempt to pacify beggers.
I've never looked at that.