Board Thread:Questions and Answers/@comment-92.233.39.118-20130307075338/@comment-116693-20130403225613

Well a larger size doesn't necessarily equate to lesser intellect. Humans, the smartest species on Earth, are also in the top 1% of all species in terms of size and weight. Larger animals tend to have larger brains (though it certainly doesn't LOOK like the Cabal have very large brains, lol) and thus a greater capacity to develop intelligence.