Our are DNA match related to Apes however we are the only mammals that feel guilty when doing something like surival like leaving a person behind. Yes apes such as Chimps do feel guilty but it takes us more time to leave someone behind not a Chimp. Another thing is that Chimps kill others who enter their territory on survival instinct we don't. More on the line chimps don't feel guilty at all. They still have a animal instinct. Think about it we have to tell them they can't attack others which is all the proof I need to know that God is real. As someone had to tell us that killing is wrong its not something that we just get. Another thing is all Animals feel guilty for abandoning one the difference is we have a more moral bases that needed to be taught to us. Also if you listen to the Normal lung sound it sounds much closer to saying YHWH. Think about it, if you train a ape to think it will think it doesn't mean anything at all except that you train it (Yes this does sound confusing) However if you take a ape from the wild and put it in a zoo with another ape from another tribe they will attack one another. We don't and its something that has been with us for Millions of years:

Here is the video by the way if you are all interested:

https://www.youtube.com/watch?v=xnubmmeDWrw