Although elephants are far more distantly related to us than the great apes, they seem to have evolved similar social and cognitive capacities.
Frans de WaalWe start out postulating sharp boundaries, such as between humans and apes, or between apes and monkeys, but are in fact dealing with sand castles that lose much of their structure when the sea of knowledge washes over them. They turn into hills, leveled ever more, until we are back to where evolutionary theory always leads us: a gently sloping beach.
Frans de WaalThe chimpanzees could tear me apart in no time. They're many times stronger than we are.
Frans de Waal