Board Thread:Questions and Answers/@comment-92.233.39.118-20130307075338/@comment-5904951-20130401184914

There were also probably much larger creatures than the Cabal on their homeworld, this would facilitate the evolutionary need to develop a higher intellegence to compete with animals that had a size advantage over them; animals that were so large that they would not have an evolutionary need to develop intellegence, like the simple but highly successful sauropods that thrived from the late Triassic period until the Cretacious extinction event. This is most likely why the Cabal are relatively large to humans, but also are technologically comparable as well.