[668 - Neighbor of the Beast]

The stone tools have puzzled researchers: How could a hominid with a brain the size of a grapefruit craft tools?

Is the writer suggesting these researchers don't know that some birds use tools? How big are their brains?

[SunkenCiv]

Chimp brains are smaller than that, I believe, and those dirty bastards use sticks as weapons to kill bushbabies sleeping in hollows in trees.