I think humans are the greatest species on Earth, but not for reasons of technology. We usually get carried away with it anyway, and use it for destruction, making us no better than a couple of ant tribes commiting genocide over a dead bug.
A helicopter pilot manouvers close to a cliff to save some moronic parachutist who ignored the ban and jumped anyway. He doesn't know the guy, and if the dude dies, he's brought it upon himself. Nevertheless, the pilot braves the risk, and gets him out.
I don't think an animal would be capable of doing such a thing (not the helicopter part, mind you; I imagine an ape with the controls connected to its nervous system could do it with a lot of training). The selfless benefactor assisting the survival of DNA that is not his own, I believe is a human invention.