We actively search for animal languages, and some do have a bit. I suspect that the concept of "mercy" would not be too far away from something some animals co

We actively search for animal languages, and some do have a bit. I suspect that the concept of "mercy" would not be too far away from something some animals could muster up. http://www.cbc.ca/news/technology/prairie-dogs-language-decoded-by-scientists-1.1322230 http://www.cbc.ca/news/technology/prairie-dogs-language-deco... I'm still not going vegetarian though.