While most altruism in nonhuman animals is indeed a product of kin selection, it is readily apparent even to a casual observer that humans are often altruistically disposed toward non-kin as well.

In the mid-80s I wrote a college paper about Sociobiology and Homosexuality. I always had a problem with E.O. Wilson's ideas of kin selection and altruism based on genetics.

Metro The motive behind those who kill their kin Published: Mar. 08, 2009, 3:17 a.m. By Patrick O'Donnell, The Plain Dealer ...

We’ve also evolved to practice kin altruism, which makes it more likely for our offspring to survive and carry on our bloodline. But how do we make sense of heroic acts toward complete strangers?

Dr Hughes said: "We have produced the first conclusive evidence that kin selection explains the evolution of social insects and that Wilson's hypothesis is most probably wrong. By challenging ...

Kin selection is similar, but here the genetic associations are between different individuals: "If I have a gene that makes me more altruistic, then I can also expect my relatives to carry it. So ...