Betcha didn't know this...
From Wikipedia:
The research of Felix Warneken, a psychologist at the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany....(described how) in 2011, Frans de Waal and his co-workers were the first to report that chimpanzees, given a free choice between helping only themselves or helping themselves plus a partner, prefer the latter. In fact, de Waal does not believe these tendencies to be restricted to humans and apes, but views empathy and sympathy as universal mammalian characteristics...
The research of Felix Warneken, a psychologist at the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany....(described how) in 2011, Frans de Waal and his co-workers were the first to report that chimpanzees, given a free choice between helping only themselves or helping themselves plus a partner, prefer the latter. In fact, de Waal does not believe these tendencies to be restricted to humans and apes, but views empathy and sympathy as universal mammalian characteristics...
