C'mon guys. One cannot antropomorphize a theory.
Damn, lost an "H" somewhere.
Theories predict. It is just semantics to call this anthropomorphizing. My point was that Darwin and evolution don't predict specific kinds of behavior. They only predict that populations will change when there is differential reproductive success.
Self-sacrifice in individuals is an observable phenomenon, not an abstract concept. I would assume that mother cats feel good when feeding their babies, but projecting human feelings onto animals is, at best, a risky shortcut to understanding the phenomenon.