Rats.

I read an article today about how rats show empathy.  One such summary was provided here, where it described how rats would save other rats from drowning.  Another similar article, here, was titled, "Rats will choose friendship over food."

For some reason, this made me feel sad for the rats. Perhaps we, as human beings, should rethink Things a little bit.

These rats were found here: http://petfriendsmagazine.com/nmrrratrescue.html