[quote=Primal Conundrum]
I... find this questionable. If they evolved underground, then they wouldn't end up looking as though they were patterned after jungle predators. The more I think about it, the more full of logic holes that entire premise is.[/quote]

Damn looks like I may have to re-work this quite a bit.
 
Well if I'm being honest here I didn't intend them to be underground creatures to begin with. If we consider that they came out of the ground a looooong time ago then it does make slightly more sense. I think the largest flaw I had was the complete weakness to water since as you mentioned above they would dehydrate rather quickly. As for them being patterned after jungle predators I hadn't actually said that, even if I did certainly think it.