australopithecenes weren't chimps... why then would their brains need to be exact size?
whilst australopithecenes were apes as much as chimps bar walking on all fours, it's possible they needed a bigger brain due to different behaviour. gorillas and chimps are both apes, but aren't the same behaviourally.
whilst australopithecenes were apes as much as chimps bar walking on all fours, it's possible they needed a bigger brain due to different behaviour. gorillas and chimps are both apes, but aren't the same behaviourally.
