0_equals_true wrote:
One of the thing you have to rule out is that that stone collecting and the stone throwing are two separate activities without forethought. It is reasonable to assume that they are not, however scientifically you still have to rule that possibility out.
In the case of the spider the subject the behaviour is directed at (the prey) features in both the planning and the execution.
There is almost no way to rule it out. We know from prior observations of chimps, that chimp males kill without provocation and male chimps band together to violence on neighboring groups of chimps. A clear case of male bonded violence, which is ever characteristic of the primate order, including humans.
Chimps are a bad tempered evil lot as we have seen from recent news stories about chimps. The bonabos have a better temper than the chimps.
ruveyn