[quote=Tyki]
psionic emp. the view on the force there was that it was a mental energy, which in all honesty it can be either a soular or mental energy so when it's between tiny and myself it's mental, similar to the protoss :P
[/quote]

The zerg can't manipulate mental energy due to the fact that it isn't genetic. Mental energy can only be manipulated through high training and knowledge, instead of genetic adaptation, which is why Zerg units aren't psychic. The Protoss are the only beings with the discipline and knowledge to master this, although the Terrans are starting to catch onto it.